Now that they revived their Flight Sim and are doing a major overhaul what older title would you like back? How about a new MS Train Sim or even a driving sim where you drive an open globe and create your own missions/races? Microsoft Vehicle Sim where you build your own craft with realistic physics and see if it can drive/fly,ride,etc? WARNING: Requires actual thinking and tinkering with an understanding of dynamics.
How about retro products like Midtown Madness/Motorcross Madness, Microsoft Kids,Home,Office,etc getting some new birth for Gamepass and actually make Windows a whole lot more functional then just for phone idiots and gamers only?
Close Combat.
Creative Writer and Fine Artist since you can import/export data between each but include the ability to actually SHARE your works!