Correct me if I am wrong but from what I heard, the reason why SFV got ps4 exclusivity was cause the game wasn't going to get made otherwise? So Sony funded the game and hence why its exclusive so if say, thats true, unless Sony pays them enough money or funds the game development, I don't think so!
Not that I would care if it comes to PC anyway
It's very unlikely. SFIV sold 8M copies, why the hell wouldn't Capcom do a sequel of their highest selling games? It would make more sense to cancel 2 or 3 minor projects and put the money there if they wanted.