I for one have always been a fan of rare company. Killer Instinct is one of the best fighting game I've played. Microsoft owns rare right now and they only want rare to make kids' games. They don't want them to go to their full potential is what I believe. If Killer instinct were to release on Play Station it would be a huge success. Tell me your opinions on having killer instinct as a game for Play Station.
I heard a while ago that Microsoft was renewing the KI trademark. Don't know how that will pan out though.
Though I'm unfamiliar with the franchise, I'd like to see KI make a (proper) return, whether from Sony or Microsoft. I guess Santa Monica could work on it, since Seth Killian has good knowledge of fighting games.