I know this isn't going to happen, but I think it would be a pretty cool idea to have a part of the next film involve Spock Prime attempting to communicate with the Prime Universe. Yes, I know this is far fetched, but it's just something that came into my mind. Spock always tries to find ways to restore the time line or at least attempt to find ways to get back where he came from. I'm kind of surprised why he didn't bother going back to 2387...Although I know the real-world reason why.
Spock feels responsible for the destruction of Vulcan and has dedicated the remainder of his life to helping them rebuild. Surely such a massive and vital undertaking is far more important than anything left over in the prime universe? With no Romulus, his unification mission is utterly kaput.