An Overview of Hunter Class Changes in the War Within Pre-Patch

Sentinel's Protection now grants 3% Leech (was 5%).
Predator's Thirst now grants 4% Leech (was 10%).
Hunter's Avoidance now grants 5% Avoidance (was 6%).
All talent trees have had many talents move locations or have had their pathing updated.
New Talent: Padded Armor — Survival of the Fittest gains an additional charge.
New Talent: Kodo Tranquilizer — Tranquilizing Shot removes up to 1 additional Magic effect from its target.
New Talent: Devilsaur Tranquilizer — If Tranquilizing Shot removes only an Enrage effect, its cooldown is reduced by 5 seconds.
New Talent: Scout's Instincts — You cannot be slowed below 80% of your normal movement speed while Aspect of the Cheetah is active.
New Talent: Scrappy — Casting Aimed Shot reduces the cooldown of Intimidation and Binding Shot by 0.5 seconds.
New Talent: Kindling Flare — Stealthed enemies revealed by Flare remain revealed for 3 seconds after exiting the flare.
New Talent: Unnatural Causes — Your damage over time effects deal 10% increased damage. This effect is increased by 50% on targets below 20% health.
New Talent: Moment of Opportunity — When a trap triggers, you gain Aspect of the Cheetah for 3 seconds. Can only occur every 1 minute.
New Talent: No Hard Feelings — When Misdirection targets your pet, it reduces the damage they take by 50% for 5 seconds.
New Talent: Territorial Instincts — Casting Intimidation without an active pet summons one from your stable. Intimidation's cooldown is reduced by 5 sec.
New Talent: Tar-Coated Bindings — Binding Shot's root duration is increased by 1 second.
New Talent: Serrated Tips — You gain 5% more critical strike from critical strike sources.
New Talent: Moment of Opportunity — When a trap triggers, you gain Aspect of the Cheetah for 3 seconds. This effect has a 60 second cooldown.
New Talent: Ghillie Suit — You take 20% reduced damage while in Camouflage. This bonus persists 3 seconds after leaving Camouflage.
New Talent: Specialized Arsenal — Kill Command, Aimed Shot, and Wildfire Bomb damage increased by 10%.
New Talent: Blackrock Munitions — The damage of Explosive Shot is increased by 8%.
New Talent: Implosive Trap — Hurls a fire trap to the target location that explodes when an enemy approaches, causing Fire damage and knocking all enemies up. Limit 1. Choice node with High Explosive Trap.
Lone Survivor now also reduces Counter Shot and Muzzle's cooldown by 2 seconds.
Survival of the Fittest now reduces all damage you and your pet take by 30% (was 20%).
Improved Tranquilizing Shot now also grants 10 focus when you interrupt an effect with Counter Shot or Muzzle.
Quick Load now resets the cooldown of Scatter Shot and Bursting Shot.
Steel Trap damage reduced by 80%.
Born To Be Wild now reduces Aspect of the Cheetah, Survival of the Fittest, and Aspect of the Turtle by 30 seconds (was 7/15%).
Steady Shot cast time reduced to 1.65 seconds (was 1.75 seconds).
Explosive Shot now explodes early when applied to a target that already is affected by Explosive Shot.
Explosive Shot projectile and explosion visual effects have been updated.
Barrage, Kill Command, Improved Kill Command, Killer Instinct, and Alpha Predator have moved to the Beast Mastery talent tree.
Barrage, Master Marksman, and Hydra's Bite have moved to the Marksmanship talent tree.
Kill Command and Alpha Predator have moved to the Survival talent tree.
Bursting Shot is now a choice node with Scatter Shot (was in Marksmanship tree).
The following talents are now 1 point:

Improved Traps
Pathfinding
Trailblazer
Wilderness Medicine
Natural Mending
Rejuvenating Wind

The following talents have been removed:

Sentinel Owl
Sentinel's Perception
Sentinel's Protection
Serpent Sting
Poison Injection
Stampede
Beast Master
Arctic Bola
Nature's Endurance
Serrated Shots
Steel Trap
Death Chakram

Beast Mastery Hunter Changes in the War Within Pre-Patch

New Talent: Laceration — Whenever your pets critically strike, they cause their target to bleed for 15% of the damage dealt.
New Talent: Go for the Throat — Kill Command deals increased critical strike damage equal to 100% of your critical strike chance.
New Talent: Venom's Bite — Kill Shot applies Serpent Sting for 12 seconds.
New Talent: Venomous Bite — Bloodshed damage bonus increased by an additional 15% and makes Kill Command deal 20% increased damage to the target.
New Talent: Shower of Blood — Bloodshed now hits two additional targets near the primary target.
New Talent: Basilisk Collar — Each damage over time effect on your target increases the damage they receive from your pet's attacks by 5%/10%.
New Talent: Huntmaster's Call — Every 3 casts of Dire Beast sounds the Horn of Valor, summoning either Hati or Fenryr to battle. Hati increases the damage of all your pets by 8%. Fenryr pounces your primary target, inflicting a heavy bleed that deals damage over 8 seconds and grants you 10% Haste.
New Talent: Explosive Venom — Every 5 casts of Cobra Shot or Multi-Shot makes your next Multi-Shot or Explosive Shot apply Serpent's Sting to up to 5 targets.
Bloodshed has been updated —Command your pet to tear into your target, causing your target to bleed for high damage over 18 seconds and take 15% increased damage from your pet.
A Murder of Crows is now passive and has been updated —Every 5 casts of Kill Command summons a Murder of Crows. Murder of Crows no longer resets its cooldown if the affected target dies.
Barrage, Kill Command, Improved Kill Command, Killer Instinct, and Alpha Predator are now Beast Mastery talents (was Class).
Killer Instinct now deals 25/50% increased damage against enemies below 35% health.
Barrage now also grants Beast Cleave.
Bestial Wrath initial damage increased by 280%.
Kill Command damage increased by 8%.
Dire Beast damage increased by 10% and now grants 20 Focus.
War Orders now properly grants a 50% chance to reset the cooldown of Kill Command.
Improved Kill Command has a new icon.
Many 2-point talents are now 1 point.
The following talents have been removed:

One with the Pack
Sharp Barbs
Wailing Arrow
Cobra Sting

Marksmanship Hunter Changes in the War Within Pre-Patch

New Talent: Rapid Fire Barrage — Your Barrage now instead shoots Rapid Fires at up to five nearby enemies at 30% effectiveness but has its cooldown increased to 60 seconds.
New Talent: Small Game Hunter — The damage of Multi-Shot is increased by 75% and the damage of Explosive Shot is increased by 25%.
New Talent: Penetrating Shots — Gain critical strike damage equal to 40% of your critical strike chance.
New Talent: Kill Zone — Your spells and attacks deal 8% more damage and ignore line of sight against any target in your Volley.
Eagletalon's True Focus has been redesigned — Trueshot lasts an additional 3 seconds. During Trueshot, Aimed Shot's Focus cost is reduced by 50% and Arcane Shot and Multi-Shot casts an additional time at 30% effectiveness.
Hydra's Bite has been redesigned —When Aimed Shot strikes an enemy affected with your Serpent Sting, it spreads Serpent Sting to up to 2 nearby enemies. Serpent Sting's damage over time is increased by 20%.
Killer Accuracy has been updated — Kill Shot's critical strike chance and critical strike damage are increased by 20%.
Razor Fragments has been updated —Kill Shot damage increase to 75% (was 50%). Moved to Gate 3.
Legacy of the Windrunners has been redesigned —Each time Rapid Fire deals damage, there is a 5% chance to coalesce a Wind Arrow at your target.
Wind Arrow damage increased by 300%. Wind Arrows are longer affected by Aimed Shot modifiers. No longer grants Focus or Aimed Shot charges after firing 24 Wind Arrows.
Wailing Arrow has been redesigned and is now passive —Now replaces your Aimed Shot with a Wailing Arrow after generating 20 Wind Arrows.
Wailing Arrow only silences the primary target and it now benefits from bonuses to Aimed Shot such as Trick Shots.
Readiness now causes Trueshot to immediately grant you Wailing Arrow and you generate 2 additional Wind Arrows while in Trueshot. Wailing Arrow resets the cooldown of Rapid Fire and generates 2 charges of Aimed Shot.
Barrage, Master Marksman, and Hydra's Bite are now Marksmanship talents (was Class).
Lone Wolf reduced to 5% increased damage when you do not have an active pet (was 10%).
Rapid Fire damage increased by 2%.
Arcane Shot damage increased by 13%.
Aimed Shot damage increased by 10%.
Trick Shots ricochet damage reduced to 65% (was 70%).
Precise Shots now always grants 2 stacks and reduces the Focus cost of your next Multi-Shot or Arcane Shot by 50%.
Multi-Shot Focus cost increased to 30 (was 20).
Many 2-point talents are now 1 point.
Bursting Shot has moved to the Class tree.

Survival Hunter Changes in the War Within Pre-Patch

New Talent: Sulfur-Lined Pockets — Every third Quick Shot is replaced with an Explosive Shot at 100% effectiveness.
New Talent: Grenade Juggler — Wildfire Bomb deals 5% increased damage and has a 25% chance to also cast an Explosive Shot at your target at 100% effectiveness. Explosive Shot reduces the cooldown of Wildfire Bomb by 2 seconds.
New Talent: Exposed Flank — Flanking Strike exposes a weakness in your enemy's defenses, causing it to strike 2 additional targets at 100% effectiveness and causing Kill Command to hit 2 additional nearby enemies for 10 seconds.
New Talent: Contagious Reagents — Reapplying Serpent Sting spreads it to up to 2 nearby enemies.
New Talent: Outland Venom — Each damage over time effect you have on a target increases the critical strike damage they receive from you by 2%.
New Talent: Merciless Blows — Casting Butchery makes your next Raptor Strike or Mongoose Bite to hit up to three nearby targets.
New Talent: Sic 'Em — Kill Command has a 15% chance to reset the cooldown of Kill Shot, make it usable on targets regardless of Health, and strike up to 2 additional targets. This chance is doubled during Coordinated Assault.
New Talent: Symbiotic Adrenaline — The cooldown of Coordinated Assault is reduced by 60 seconds and Coordinated Assault now grants 3 stacks of Tip of the Spear.
New Talent: Relentless Primal Ferocity — While Coordinated Assault is active, Kill Command generates 2 stacks of Tip of the Spear, you gain 10% Haste, and Tip of the Spear's damage bonus is increased by 50%.
Mastery: Mastery: Spirit Bond has been redesigned —You and your pet deal increased damage and take 3% reduced damage, increased by 100% when within 25 yards of each other.
Tip of the Spear has been redesigned —Kill Command increases the damage of your next non-pet spell by 15%, stacking up to 3 times.
You now consume one stack of Tip of the Spear at a time and multiple stacks of Tip of the Spear no longer increase its damage bonus.
Flanker's Advantage has been redesigned —Kill Command has a 10% increased chance to immediately reset its cooldown. Tip of the Spear's damage bonus is increased by up to 30%, based on your critical strike chance.
Spearhead has been redesigned —Your pet charges your enemy target, applying a heavy bleed that increases your chance to critically strike them by 30% for 10 seconds. Spearhead visuals and sound effects updated.
Deadly Duo has been redesigned —The cooldown of Spearhead is reduced by 30 seconds and increases your critical strike damage against the target by 30% for 10 seconds.
Viper's Venom has been redesigned — Raptor Strike and Mongoose Bite apply Serpent's Sting.
Aspect of the Eagle has been redesigned —Increases the range of your Raptor Strike and Mastery: Spirit Bond to 40 yards for 15 seconds.
Bombardier has been redesigned —Casting Coordinated Assault grants 2 charges of Wildfire Bomb. When Coordinated Assault ends, your next 2 Explosive Shots are free and have no cooldown.
Ruthless Marauder has been redesigned —Wildfire Bomb cooldown reduction effect is now 1 second by default and no longer is increased by the second talent point.
Coordinated Assault has been redesigned —You and your pet charge your enemy, striking them for combined Physical damage. You and your pet’s bond is then strengthened for 20 seconds, causing you and your pet to deal 20% increased damage. While Coordinated Assault is active, Kill Command’s chance to reset its cooldown is increased by 15%.
Wildfire Infusion has been redesigned — Mongoose Bite and Raptor Strike have a 10% chance to reset Kill Command's cooldown. Kill Command reduces the cooldown of Wildfire Bomb by 0.5 seconds.
Quick Shot has been updated —Now has a 30% chance to fire an Arcane Shot when you cast Kill Command (was when Kill Command reset).
Bloody Claws has been updated —Now also causes Kill Command to extend the duration of Mongoose Fury by 1.5 seconds.
Kill Command and Alpha Predator are now Survival talents (was Class).
Harpoon is now learned at level 14 (was a talent).
Aspect of the Eagle is now learned at level 23 (was a talent).
Coordinated Assault initial damage increased by 60%.
Butchery damage increased by 100%.
Lunge no longer increases attack range by 3 yards.
Wildfire Bomb now costs 10 Focus and its damage over time effect is now a rolling periodic.
Explosives Expert now reduces Wildfire Bomb cooldown by 1/2 seconds (was 2/4 seconds).
Explosive Shot now benefits from and consumes Tip of the Spear.
Flanking Strike damage increased by 40%, generates 15 Focus and generates 2 stacks of Tip of the Spear.
Bombardier now uses an activation overlay.
Many 2-point talents are now 1 point.
The following talents have been removed: