You have it backwards. Sony are called Soyny for a reason. They'll buy the company and have them churning out generic third person action games with a "strong female protagonist" that is a troon, where you find collectables and the game is impossible to lose to pander to Twitter and game journos. They'll force out anyone who doesn't tow the party line, assuming they don't quit.
In ten years well get articles and forum posts opinioning about how FromSoftware has fallen, the same way Naughty Dog, Rare, and Bioware are today. Their downfall will be blamed on "being to esoteric", "unable to keep up with the times", or even "FromSoftware was never any good without Miyazaki" rather than admit the obvious everybody can see now.