- Phil Spencer doing his thing. Wants to start with games coming this year
- Gears 4 gameplay demo to kick things off, release date for November
- Recore gameplay footage, release date for October
- Below trailer, release date for July as a summer arcade headliner
- Battletoads announced from a small studio, trailer/footage, release date for August as a summer arcade headliner
- Titanfall 2 footage
- Forza Horizon 3 trailer/footage, release date for September
- Sea of Thieves gameplay footage, beta release date for September, full game in 2017
- Halo Wars trailer, release date for November
- Spencer back to talk games coming in 2017 and beyond
- Tacoma trailer
- Undead Labs new IP announced, trailer/footage, coming in 2017
- Scalebound trailer/footage, release date for March 2017
- Mass Effect: Andromeda footage
- New IP from Mistwalker announced, trailer/footage, coming in 2017
- Detail some extensive Windows features coming to Xbox One
- Xbox Slim announced for $299, coming in September
- Banjo-Kazooie announced from Rare as a secret project they've been working on, coming in 2017
Even thought a couple of your items won't happen, I think this is a fairly accurate "guess" as to what will likely go down. Probably sprinkle in more Wndows 10/Xbox fusion talk, as well as some back compat stuff and a bit of VR talk. But that's probably close.