Disappointed by the lack of speculation about the next expansion itt!
Ulduar seems to be the consensus theory. This image from Blizzard apparently reminds people of the Yogg-Saron room:
Quote:
What is this month’s card back? It’s a secret, and it will be revealed at BlizzCon.
I'm not sure what to think of the blue secret. Maybe it's just Blizzard blue, maybe we'll be getting secret out of the three current class. A neutral legendary that lets you pick from its list of secrets could be cool.
Also, "secrets of Ulduar" was the name of the WoW patch or something.
Anyway Ulduar would be cool. There's potential for a mech revival in there.