Well here is what I believe
1) Halo 6 - 343i
2) Gears 4 - Coalition
3) Ori 2 - Moon Studios
4) Outer Worlds - Obsidian
5) Forza M - Turn 10
6) Forza H - Playground Games
7) State of Decay 3 - Undead Labs
8) Battle Toads - Rare
9) Minecraft Update - Mojang
10) ??? - Inxile
11) ??? - Playground Games 2nds
12) ??? - The Initiative
13) ??? - Compulsion
14) ??? - ???
There could be a possible Fable 4 announcement. A old Rare IP revival (Conker, Banjo Kazooie or Perfect Dark 2)
The Forza Games I believe will be announced for next gen systems. (XB2 Cross gen)
I didn't mention anything about Wastelands, Gears Tactics or Age of Empires 4 as I believe they will be announced at the E3 PC event on MS's stage.