Very interesting. Carol Marcus was Kirk's love affair back in the day so it is a possiblility. I know we were discussing this in another thread but what about Sybock. He could show up somewhere. I know he's not very popular but he was Spock's half brother and might be shown during the childhood part of the film. Just a possibility.
If You Smelllllllllllll what the Vulcan is coooking!