Perfect Dark.
Ala Perfect Dark Zero without the massive amount of bone and soul crushing fail.
The Star Wars: Jedi Knight games would be nice done with force unleashed graphics, i'd die a content old man. (For those of you who get the joke, I applaud)
That's it for the graphic updates (Oh i'd pay $20 on XBL to get a modern era graphics version of PD...)
On the 'Remade, renewed, recycled, better' side of things.
Transformers. An oldish game from the PS2 that was... Horrible, horrendous. It had you wandering about a featureless wasteland or in canyons until you found a invisible wall. You killed enemies and then the wall disappeared, this repeated itself.
An update for the 360/PS3 with you playing through the original G1 episodes? Hell, i'd shell out $100 (Or $120 for the special edition!) on launch day!
Spore. I was all 'Whut? Lol, best be joking here!' when I bought it and played it. Fun, but... Hardly any substance, where's my aquatic species? Where the heck are my underwater cities? Where are my space stations?! Where the bloody hell is my armada?
...I want my death gloopagrob. And so, this comes under, $30 expansions? Gimme my space stations to defend my planets. And my giant orbital laser. And my armada of space ships to raze hell on planets, What? I only get -FIVE- maximum and they do nothing... Stupid friends, cant be trusted to even defend themselves.