I'd really love to see another Resistance title, even though I know Insomniac has said they're done with the series. I also want to see a return of Syphon Filter. My husband absolutely loved those games.
I second Resistance making a return. Such a great shooter with a unique premise. There really wasn't anything else quite like it. Great PS3 memories with that game. Most of the other stuff I would want to bring back up is already being revived in some way, like Psychonauts (yes, I know, not a PlayStation exclusive), Crash Bandicoot, and the slew of classics that are coming back. If I wanted to mention an off the wall one, I would say we need another Legend of Dragoon, or entry into the Parasite Eve series. Both of those are fond memories of my PS1 days.
Resistance for me. Played the friggin daylights out of that game.
SOCOM. The franchise (pre-SOCOM 4) is quite unique compared to the other shooters out there now and the long legs of Rainbow Six Siege show that there's still a market for strategic shooters. Recreate the classic maps and modes fans remember with new content sprinkled in and you've got a hit on your hands.
Resistance, hands down. Big fan of that series from the beginning and I thought Insomniac built a fairly rich sci-fi universe that's still begging to be explored. The three main titles were fairly diverse, too—Fall of Man had its horror moments, and I loved the alternate history, but Resistance 3 came packing a really poignant, memorable story.
Suikoden. I would also second a return to Legend of Dragoon or Arc the Lad. Oh and add a White Knight Chronicles collection on PS4, with the PSP game Origin included.
I would love to see a NEW Wipeout sequel. None of this HD re-release garbage...