On the PBE, Azir has these changes:
Arise (W) [NOTE: Tower damage bits removed from tooltip but seems to still function in-game at the moment.]
Emperor's Divide (R):
Wall duration lowered to 2 seconds from 5/6/7
No longer grants 20% movement speed for 1 second when passing through wall for Azir and Allies
A 2 sec fucking Wall? I am sorry, but having that wall for 2 secs is fucking worthless as hell. At least make it something like 3/4/5 or 4/5/6, but 2 secs for the Wall just seems worthless. His ult isn't even what makes him good, it's the fact he get a ton of attack speed from the W.
I say, reduce or just outright remove the bound attack speed from W, and the changes above. This might fix all the problems people have with him, even though I still don't think hes OP at all, but what do I know.
I also think his tower sucks and needs to be buffed.
Update: Wall went up to 3 secs, but that still is a bit short. His wall undashable part wouldn't see much use, so if anything, just keep it at 5 at all ranks. 3 is a really short amount of time in this game, and his ult would be boring otherwise.