I would assume the people who write the contracts Microsoft signs are smart enough to ensure stuff like that isn't possible.cant like they remaster SO and add new stuff/feature then slap a suffix to release it on ps4?
just wondering, like how they did for ninja gaiden sigma etc games that was on exclusive with ms before
But really, I think if Sony just went to Microsoft and proposed a fair deal they'd accept in a heartbeat, simply because Microsoft has nothing to lose from letting the game on PS4/PS5. If Sony offered something like they (Sony) fund the port and then split the profits 50/50 I think Microsoft would happily take it.