So how about that weather?
This has something that has bothered me since 3.0 release and I found is even more annoying in Diadem. You (SE) made these MASSIVE and rather well designed zones that can look great... IF you can see them. Some zones like Hinterlands are not to bad, but go to Coerthas and its almost constantly snowing or something blocking any sense of a view. I'm not sure you have the weather set this way for 'maximum realism' or something but I don't care for it.
Is it possible for you to bring a graphics settings to disable weather? It was present in XI (inb4 this isn't XI spam) and I found it a rather nice feature in several zones.
Bonus points if you can also remove the 'air stream' effect your mount create while flying. Blocks my view also. :p