Ninja Gaiden 1&2 since there will probably never be another one like the first two. Also The original Legend of Zelda.

The Last Guardian :P

No seriously. Super Mario 64 definitely. Possibly Ocarina of Time. Metal Gear Solid(PS1 version)!!!!! Resident Evil 2(real time backgrounds and camera)!. Shenmue 1 and 2. Goldeneye(never going to happen given Rare and Nintendo's split). Half Life.

Xenogears and Chrono Trigger + Cross.

Grandia would be nice aswell.

Metroid II, Metroid Prime Trilogy, Twilight Princess

After the Ratchet & Clank Remake, I would love to see:

Jak & Daxter The Precursor Legacy Remake, the first game was my favorite and the best in the trilogy at the funny department! But the game is now so outdated! It would be really cool if they could remake it, as it's one of the best and hardest 3D platforming games I've ever played! A remake of the first game + Jak & Daxter movie + continuing the story of what happenned to Gol & Maia would be AMAZING for me! They were my favorite villains in the series and I just can't believe they simply disapeared like that! Come on Naughty Dog make a secondary team and bring us more time travels to Jak AKA Mar.

Ape Escape: I really LOVED this series... Ape Escape was such a fun, creative and a great way to use the DualShock, I would love to see a remake of the game with a better work of Spike's Origin (with the technology we have now, he can be much better!)

Tomba!: Well Tomba! was my favorite 2D platform game in the PS1, it's story was so freaking hilarious and creative, elements of RPG and the Quests really made this game a charm on PS1 days, the looks are so out-dated right now! I would freaking love to see a reimagined version of this game

Max Payne and Max Payne 2
God Of War and God Of War II
Super Mario 64

GTA III

I would like to see a remake of ff6 or crono trigger, but i don't think we will see that in the future

syphon filter and road rash are the main ones,that I'd like to see. Maybe double dragon,but keep the side scrolling beat'em up style. the orginal ninja turtles game.

Rogue Squadron
Turok: Dinosaur Hunter