2011 is the release year.
Project Titan? No, its more like 2013.. trust me. The core framework is all thats done, the engine. The programmers were tasked at building an engine for a game that did not yet exist and still does not exist. No art, no modeling, no nothing has started on Project Titan yet. Also, Blizzard has announced it being a new IP, which isn't entirely true either. Its a spin off of an existing franchise, a franchise that I think is going to excite people very, very much. Which one? Which would would people want more than any other?
Blizzard runs a pretty tight ship, leaks are few and far between but tend to go unnoticed when coming from the unexpected.