Parasite Eve is a Square Enix IP, so it’s possible it could get a PC port, but I wouldn’t count on it going to GOG. They’re almost as bad as Nintendo when it comes to hoarding their IPs.
I bought one of those 60GB original PS3s back in 06. That was also the last game console I purchased for myself. Made the switch to PC not long after that.
Doubtful. It’s been discounted pretty heavily recently. And I believe it was also included in a bundle or two.