Titan? All we know about it right now for sure is that it's being developed by Blizzard, and we've been told on occasion that the game is not a new installment of one of Blizzard's existing franchises. But that may not be the case. According to rumors collected by the fans over at Titan Focus, Titan may indeed be a spinoff of an existing IP and might even be aimed at the console market.
The hints have been coming from a fan known in the community for being fairly reliable in his rumors, lending this some credibility, but it's still just a rumor at this point. If it's true, then we can expect the game to be tied to one of the existing Blizzard franchises, albeit not as a direct sequel. Considering how quiet the studio has been on the project for some time, we can only hope that the surfacing rumors are a sign we're getting closer to some hard information.