They said 60fps halo with dedicated servers is coming this year. Halo 2 remake just might have multiplayer. Also, it's going to look absolutely incredible on the xb1 after waiting an entire generation.
And halo 5 beta access + a full 3 year development period for halo 5 is incredibly promising. Sounds like they definitely understand halo 4 was a bit of a misstep and are dedicated to making sure the next entry is as good as it can be. XB1 is going to have an amazing next three years. QB, Sunset overdrive, titanfall, and h2 anniversary this year. Fable and halo 5 next year, crackdown 3 and gears 4 in 2016. Crazy.