|Studio||Last Game||Release Date||Release Date New Game|
|Rare||Sea of Thieves||2018||Battletoads / 2019|
|Turn10||Forza Motosport 7||2017||?|
|343 industries||Halo 5: Guardians||2015||Halo: Infite / 2019|
|The Coalition||Gears of War 4||2016||Gears 5 / 2019|
|Undead Labs||State of Decay 2||2018||State of Decay 3 / ?|
|Playground Games||Forza Horizon 4||2018||?|
|Obsidian Entertainment||Pillars of Eternity II: Deadfire||2018||?|
|inXile Games||The Bard's Tale IV||2018||Wasteland 3 / 2019|
|Compulsion Games||We Happy Few||2018||?|
Plus Mojang, who are obviously working on Minecraft and its expansions. It just refuses to die.
I think Ninja Theory, Playground Games with their 2nd team and Obsidian will start next gen for Microsoft with 2020 releases as launch titles for the next Xbox.
Imagine not having GamePass on your console...