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.
Parasite Eve
I remember rumors of a new Parasite Eve being in production a while ago and it still hurts that it hasn’t been made real. It would be nice to see them just remade with some modern-ish graphics.