We last spoke of Bill Shatner when we talked about JJ Abrams talking about writing a part for Shatner in his Star Trek Reboot and it appears he was only partly accurate about the situation.
The Shat himself decided to address the issue himself. ComingSoon.net says:
It seems to us that someone in the film’s production told Abrams that Shatner didn’t want to do a cameo and wanted the movie to focus on him. As you can see from the video below, Shatner says he was never contacted by someone about taking part in the movie, but agrees that he wouldn’t be up for just a cameo and suggests they resurrect him in the follow-up.
So after blowing some much deserved wind up JJ’s skirt, the Shat says he agrees that he would be opposed to a cameo, but then mentions some nonsense about bringing Kirk back.
I know this story is supposed to rewrite history so it is possible that the events that lead to Kirk’s anticlimactic demise in Generations wouldn’t happen like that, but I just don’t feel good about bringing Kirk back. He is iconic in the role, and with history rewritten, its best to leave him in the past and see what the future brings.