Some one appears to be pretty embedded into the Microsoft secret files because we have gotten a lot of news from their press conference today.
Another domino has just fallen, but thankfully it isn't too big. It's a screenshot from what looks to be the trailer of Halo Wars 2, but there isn't too much more to gawk at here. This more or less just confirms the game will be there on Monday, and that Halo Wars looks like Halo.
Take a look