I tried gathering pictures of as many changes as I could, but I can't get to southern STV to see Booty Bay at all without the game freezing.
First we have Nessingwary's Camp. Looks like he added a little palisade around it, more tents, maybe it will become a bigger quest hub?
Here is what appears to be some small horde quest hub, probably goblin related. North of Grom'gol (Edit: Alright, this is IG already, I guess I just never noticed it before, stands out more from the air then the ground)
New troll quest hub in upper eastern STV?
I don't know if its just Sandbox, but perhaps Zul Gurub isn't a raid anymore and is a zone instead? I didn't have to zone in, that's why I think.
This is the area where once I passed here anymore south, I froze and crashed.
New Alliance questhub right near that crater
This is the last picture I could get before it froze, had really low FPS.
Map