I will love to see Robinhood: The Legend of Sherwood remastered.
That franchise has The Dark Mod. Does it really need more?What about Thief and Thief II?
The Dark Mod is a great place for fan made mods but that is hardly the same as remastering the first 2 games.....That franchise has The Dark Mod. Does it really need more?
(OH wow, looks like there's actually been a really big update for that mod!)
The Witcher 1, maybe even spruce up The Witcher 2 a bit as well (even though it looks great already!).
Someone mentioned Morrowind earlier; good choice, but community mods do it a better service than what Bethesda could come up with. On a similar note though, I'd like their future games to have the same amount of depth / complexity / challenge.
Also, Mercenaries and Destroy All Humans! 2. The remake of the first game was solid, so it would be cool to see some of Pandemic's other titles see the light of day again.