Kind of half expected them to keep this as their closing surprise. When the trailer started I knew it must be Halo 4, the only thing that threw me off is they mentioned it being a trilogy.
I'm excited for both Halo games but it sucks that the two non-Kinect titles that were announced were both Halo. Where the hell is Crimson Skies 2 already? --- Zombies are like sprinkles, they make everything sweeter!