Did they? I don't really think so. It's completely possible that CoG might be a real name, outside of some people not liking it (which was the case with most if not all WoW expansion names) and some people claiming it's gramatically incorrect (which it may or may not be + it may or may not really matter), why is the name a fail?
Also, I don't recall any of the recent leakers at least trying to post something to back their claims up. This one does.
Take a look at it in Acrobat, and look at the PDF properties, and compare.
The one from the PONZ pdf I got in my email has different properties, they use the Apache PDF generator.
The PDF linked has the user's name, and the creator is Microsoft Word 2013.
Sorry guys, this is an edited or fake PDF.
Fun while it lasted - and at least we know the name of who was trolling. Bad Ruben!
Check your metadata, trolls!
Actually, I think an expansion centered on the Council of Tirisfall could be an interesting new direction, since we don't know what's under there; people are burned out on Orcs, and if HfC lasts as long as is claimed then they'll probably be burned out on Legion too.
Doesn't change the fact that grammatically it sounds weird, which is why I think it's fake.
Someone from Brooklyn just registered the .com domain haha.