BajiRav, on 18 February 2013 - 18:03, said:
May be he migrated in the alternate timeline?

Scorbing, on 18 February 2013 - 22:42, said:
Yes. People seem to forget this is another timeline, where everything is different.
Actually, it's the same prime universe up until the beginning of Star Trek (2009). The moment the Narada appeared is when the alternate reality was created. Khan was born in the mid-20th century, well before the events of the movie so he was unaffected by the changes.
I highly doubt Benedict's character is Khan. It's more likely that someone else found the superhuman sleeper ship and instead of Kirk waking up Khan in the prime universe, Benedict's character was woken up to possibly work for Starfleet. I think this is where Section 31 comes into play. They probably wanted the ultimate commander and must have trained Benedict's character. And because of his superhuman intellect, he's able to learn faster and retain more information than a normal human. Why else would he be wearing a Starfleet uniform in the trailers?