I liked the KoF Maximum Impact games, it was nice seeing them fleshed out in 3D. With a 2 generation advancement, I'm hoping for something far greater. Though yeah, I certainly hope the trailer is not indicative of final results.
Roster. Hmm, guess I'd want the characters I tend to play the most. Who happen to be a mostly female roster. Athena, King, Yuri, Kula Diamond, though I do enjoy playing some classic male characters like Terry, Kyo, Joe Higashi, and Benimaru.