This is an incredibly curious decision, considering all the noise they've made about their in-house, next-gen ready Luminous engine (which Versus is running on). I really want to know what the rationale is.
Vivi's statement, that this generation practically ran on Unreal Engine 3, is in no way an exaggeration. The list of games that have used it is
staggering. I do think they're going to have more competition next time around, though, with a slew of "next-gen ready" engines already available, such as Frostbite 2 (already being used at EA), Cry Engine 3, and id Tech 5.