First Star Trek sequel set photos released - who is Benedict Cumberbatch's character?

The first set photos from J.J. Abrams' Star Trek reboot sequel have been released by Paramount. The photos show Trek newbie, Benedict Cumberbatch facing off against Spock and Uhura on what has been described as a "space barge".

Supposedly, Cumberbatch is playing an existing Trek villain, but Paramount and Abrams have not been forthcoming regarding exact plot details or the exact identity of this villain. The set photos don't really clear up the issues all that much. In fact, it blows speculation wide open, as the character is likely not the shoe-in villain, Khan.

A very close examination of the photo shows a Starfleet insignia on Cumberbatch's black undershirt, so it is possible that he is a Starfleet officer or someone involved with Starfleet. This doesn't rule out the idea that Khan is not going to be in the movie; Kirk could have supplied Khan's crew with clothing. It is also possible that Cumberbatch isn't Khan, but rather one of Khan's second-hand men. Peter Weller may be portraying Khan, even though that would seem to conflict with his identity as a "C.E.O." that was given by his agent. Alice Eve could also be playing Marla McGyvers, and a set on a "space barge" is still consistent with the Botany Bay. So we still can't rule out Khan as the villain, but I think there are much more likely possibilities.