I fully expect MS will go full third party and it’ll be called Microsoft Gaming
I was doing some research and I came to the realization that nearly all big publishers basically rely on a few core franchises
Lets look at the biggest darlings in the industry right now, Sega and Capcom
Sega announced that they want to release annual LAD, Persona and Sonic games
https://www.thegamer.com/sega-reportedly-wants-persona-sonic-the-hedgehog-like-a-dragon-to-be-annual-yearly-releases-insider-claim/
Sounds like Sega has their core franchises and occasionally will put out something new like Unicorn Overlord and Metaphor
Capcom? Street Fighter, Resident Evil, Monster Hunter being the big one and maybe some smaller known IP like Ace Attorney
If we look at Nintendo they basically have one successful new IP in the last decade and that’s Splatoon
Microsoft has really pushed for new IPs and some have been very successful like Sea of Thieves an Grounded but I believe Microsoft really is going to want to focus on the big money maker IP they have, and there are A LOT of them
Off the top of my head
Halo, Gears, Forza, Grounded, Sea of Thieves, Outer Worlds, Age of Empires, Flight Simulator, Minecraft, Doom, Elder Scrolls, Fallout, COD, Crash, Spyro, Warcraft, Starcraft, Diablo, Overwatch