Well, I read some interviews with GC where they said they'd look into some talents - I didn't get the impression that the 'entire' system is being re-worked My impression is that they'll be looking at specific 'tiers' that are mandatory for some classes - like the 'Grimoires' for warlocks (although that wasn specifically mentioned). I think with the exception of that one tier warlocks are a good example of what they're going for. I've been reading your raid guides, and I noticed you're often switching between talents and glyphs based on sepcific fights, which is the type of thing you're looking for (some of it was written before the change to Kil'jaedan's Cunning).
And there's always the chance that despite their intentions, they decide they can't touch that tier for 'locks without doing more harm than good. And let's face it - the simplest change would be just to nerf Sacrifice's damage and then buff the pet's damage in return - which would stil leave Demonology where it is.
For raiding however, I feel like that even if they make changes to make Sacrifice equal with the other two - in most cases Sacrifice is going to be the way to go. That way you get the same DPS, and you don't have to deal with the pet AI and making sure it's attacking the right target or not standing in bad stuff. Other than the imp's buff (which is readily available elsewhere) none of them really bring much in the way of utility that a raid might need. Sure, having an interrupt or cleanse is nice in some PvE situations - but as of right now the warlock gets those when they sacrifice the pet (and again in a raid there are usually other people that have better tools to handle those situations).
So unless that tier is overhauled, it's hard to imagine a situation where Sacrifice wouldn't be the preferred option in most caes as long as the damage is equal. The only way it seems like you'd ever want to use the pet is if the damage is signfificantly higher than what you'd get if with Sacrifice, and that just is the same problem reversed.
Edited by Stunlocked, 11 December 2012 - 04:56 PM.