Originally Posted by The Guardian
If Nimoy is in the next film, he could have a "memory" about Kirk and have Shatner come back that way. He could show up if the crew is sent forward in time as Kirk's older self. There are always possibilities.....
Of course there are always possibilities. It's about knowing the right thing to do. And Shatner isn't it. Neither is more time travel. We just landed here, let's not go jumping off to somewhere else.