Blizzard has announced that Patch 10.1.5 Fractures in Time launches on July 11th!
The infinite dungeon will be interesting to see in action, from what I've read there's a chance to get a mount from a past expansion. Though it seems so far only mounts that are still available in game.
As someone who plays a lock, I'm thorn on the pet customization changes. On one hand these are long overdue, on the other hand we are losing some of that customization we already had with the excuse being that they want the silhouettes of pets to be easily recognizable.
Apparently hunters having a massive amount of different pets is ok, but locks 4 pets + a couple of glyphs to change their appearance is too much for both lock players and players playing against locks in PvP.
I'm very curious about time rifts and super excited about a few changes like no allied race requirements anymore (got almost all of them but gave up on the last few because I was tired of the slog), and dragonriding in Azeroth hell yeah!! (I know it's just a few zones for now but it's a start :D)