Sony is hiring and focusing its efforts now more than ever on the PC, in addition to Playstation.Very unlikely. CDProjeckt and Sony have no relationship whatsoever. Sony also publicly humiliated CDProjeckt when they pulled Cyberpunk from the PS Store. And CDProjeckt is a largely PC-centric developer.
This is one of the case where a Microsoft purchase would make much more sense.
About Sony humiliating CD Projekt... Well, on that topic I can disagree.
I guess they decided to pull it because when it was released it didn't meet the quality standard to be on the PS Store and there was a lot of discussion about that.