Morial Kombat 9 for backwards compatibility

Software emulation of the 360 in the plu and play style a commercial product requires in real time is impossible on even highest level enthusiast PCs. RISC to CISC is hugely intensive. Existing BC titles have been recompiled using special tools for Xbox
One.

The BC team is currently all hands on deck for the next console, but maybe if you send the request to the devs they'll keep it in mind.

As soon as the next console is released the team will be able to concentrate on the BC list

It will be backward compatible on Xbox Series X, pretty sure of it

The team is working on full BC on the next gen console

If you're expecting 'Full BC' on the Series X you're going to be disappointed. The Series X is set to run pretty much all Xbox One games and only the games from the Xbox 360 and original that have already been made BC.

To get full BC would require a full software emulator, that's unlikely to happen.

Software emulation of the 360 in the plu and play style a commercial product requires in real time is impossible on even highest level enthusiast PCs. RISC to CISC is hugely intensive. Existing BC titles have been recompiled using special tools
for Xbox One.

Not Impossible just very demanding and hugely complex. After all, I've used RPCS3 which is a PlayStation 3 emulator on my PC running a number of games at 60 fps full speed, and the PS3 Cell is an even more complex CISC PPC based processor than the 360's
PPC CPU.

There is an Xbox 360 emulator for the PC called Xenia (which I've also tried), but it's no where near as developed as RPCS3. The Series X will have a much more powerful processor this time round, which could potentially make Software emulation of the 360
a possibility, albeit highly unlikely still.