I went to look at Ghostcrawlers linkedin profile via the LoL thread about him going to riot games and looked at his previous history:
"Led about half of the World of Warcraft design team. Oversaw class, item, profession, combat, PvP, encounter, UI and major feature design. Shipped 3 expansions and contributed to 2 others."
if my math is right that means he contributed to WoD and whatever is next, cause wasn't TBC shipped/ready to be shipped b4 he was brought on?
http://www.linkedin.com/pub/greg-street/7/644/b35
if i'm wrong just delete :P
P.S yeah i expect SEVERAL more xpacs but i know some people swear WoD is it.....