Disappointing. Is it really that hard to come up with new characters? Just taking a bunch of characters from the best star trek film and rehashing the plot isn't good enough. Lazy at best.
And I agree, Khan is from 1996, and is still frozen, so has no reason to be a vengeful mass murderer. Abrams has not added anything new to star trek, only taken various bits from previous films/episodes and rehashed the story. Why not a new race from another part of the galaxy, or even another galaxy? :/
I did however like seeing the NX-01 model on the desk.