Xenonauts dot com - X-COM remake, looks very promising.
Baldur's Gate 1-2.
Would love a remake which unified ALL the content from Baldur's Gate 1+Xpac --> Baldur's Gate 2+Xpac. Retaining the same turn based combat of old but with the graphics, presentation, voice acting and UI of games like Dragon Age/Mass Effect.
Also: Everquest 1 from 1999 to 2005 with graphics, character customization and UI like a modern MMO.
Quake III. Skip 'realism' or complex weapons or vehicles.... Keep the brilliantly simple - on - the - surface gameplay and speed of the original, and freshen it up with high poly everything, a slew of new maps with a good dose of revamps of old ones, and a truly solid editor system. I'd spend years playing it.
Turak 2. I miss the boomerang saw blade... and the Cerebral Bore, one of the best weapons in any FPS ever made. And the nuke gun.... and just about everything else about the game.
Contra (NES)
I'd like Ragnar Törnqvist (Funcom) to be done with Secret World already and make the next sequel to the Longest Journey and Dreamfall. And patch his old games so they fucking work.
Dungeon Keeper 3.