JJ Abrams has previously said that he’s open to the idea of a return for Star Trek II's Khan Noonien Singh.
"Khan and Kirk exist — and while their history may not be exactly as people are familiar with, I would argue that a person's character is what it is," Abrams said of the notion that his Khan could be just as evil, even if Kirk never stranded him on Ceti Alpha V.
"Certain people are destined to cross paths and come together, and Khan is out there ... even if he doesn't have the same issues."
We’re not saying we want another Wrath Of Khan – even with their success, the new Trek team should in no way try to emulate that classic – but it would be interesting to see the two Ks clash again.
Space Seed is a great episode of the original series to base the story on, the plot shifts of the first film don’t affect Khan's origin, and he’s certainly a better villain than Nero.
Javier Bardem as Khan, please.