Patch 11.2 goes live on August 5 and the latest PTR build is flagged as the first Release Candidate (RC) build!
When you launch the PTR client, you will notice in the bottom left corner that the Patch 11.2 Build 62136 has been flagged as the first Release Candidate build.

What’s a Release Candidate Build?
A RC build means we’re getting close to the final release of Patch 11.2: Ghosts of K’aresh. The patch will go live on August 5 in NA and August 6 in Europe.
What’s Coming in Patch 11.2: Ghosts of K’aresh?
To learn more about the final major content update of the expansion, check out our dedicated Patch 11.2 hub!