I’d like to see a Perfect Dark sequel. That game is just crying for a franchise. The prequel was fine and all, but a continuation, with improvements, wouldn’t hurt.
Jet Force Gemini should get its own sequel as well. That game was so underrated, a new generation should experience this incredible game.
If Rare could get their act together, they should definitely get around to getting these two games some quality sequels.
I’m gonna second for a new Jedi Knight title as well. One of my favorite PC games was Dark Forces II, and there’s no reason why LucasArts shouldn’t continue Kyle Katarn’s story. Maybe bring in his involvement from within the New Jedi Order series.