I am really looking forward to the way they are re-doing my spec (brewmaster monk), hoping that we find ourselves closer to our roots as an avoidance tank rather than the self-healing/absorb tank we are right now. I am also really interested in seeing all of the class and spec-specific content they're making for the artifacts and how the world scaling works. The dungeon previous I've seen so far also look fantastic and I'm really excited to see the new content