Microsoft doesn't need to reveal anything until E3. I'd rather they reveal their games when they are confident they can hit a release date. I bet if they truly wanted to, like Sony and Nintendo, they could show some new games, but they probably wouldn't release for another 1.5+ years. No game developer or publisher wants to go through what Square went through with FFXV or Sony with TLG or even Ubisoft with Watch_Dogs.