As some of you might know already, it has been stated that the next WoW expansion will be revealed (or let's say announced) at this year's Gamescon (Date: August 6th). Blizzard has 500 stations there and some of them might even have a playable part of the next expansion. (Since most likely they won't have all 500 of them for Overwatch or whatever their fps is called).
I've skimmed through a promoted reddit post about and found this
which is pretty much what people are expecting thus far (consindering there was a "leak" about Blizzard (Registered under Delaware law ->> LOL, using a NZ agent ->> LOL )trademarking Council of Glades, but with all of their "recent" releases (Diablo III, HotS, HS) this might be related to any of these and not WoW itself.
Give your thoughts, and post any quality leaks if you have them :P