I was just thinking that with the crazy success Elden Ring has had, Sony might think about making a Bloodbourne remaster sooner rather than later. And with Demons Souls moderate success, why not do a quick(ish) cash grab and make a remaster? OR maybe they wait for the PS6 and do a full remake.
Either way, I don't see any way they get From to make an exclusive PS game again. From has gotten too big. *Maybe* if Sony allows them to do a day one PC release then they'd go for it. But even then, they'd be losing millions in sales from an Xbox version. You're right; Sony would have to throw a ton of money at them.