I'd almost be willing to bet money it's God of War considering that looks an awful lot like Kratos' dead wife and the eye at the end looks like his. Doesn't really make any sense, though, considering it releases in March and virtually everything has been announced already. My best 2 guesses are a single player trailer(which I don't think has been released yet) or God of War Vita.

Easily my favorite franchise so I'm hoping for the latter. There could never been too much God of War.