User blog comment:D. Cello/Assassinews 03/05 -- ACWiki's Fan Section and AC3 first trailer/@comment-4374396-20120312184300/@comment-4374396-20120313182917

I just said "I don't think it's officialy confirmed", of course it has never been stated. But if you've played the multiplayer of Revelations, you might know what I'm talking about. You can also check on YouTube if you have not. I would put money on it, he has to be in the game.