For me personally, I would love to see the Resistance series get some love. A collection with all the titles, including PSP, added together with upgraded graphics would be nice but I would really love to see a new entry into the series.
It’s that or Legend of Dragoon but that’s a real long shot.
I played the PS3 remaster (first game) and it works and looks great. It wouldn’t really need much to be modernized. The style is more cartoony 2D-like look and that should remain I think. The modern R&C look wouldn’t fit it too well, imo.