I won't be getting excited until I see some gameplay. Pre-rendered cut scenes in a game who's predecessor didn't need them to be awesome don't cut it for me.
Not to say the trailers haven't looked cool and all, and I'll give credit where it's do in that the art style looks cool, but I can't play the art style. So if the gameplay is there to back it up then I'll gladly buy it when it comes out.