Well, the re-boot started with the question "what if something happened to change the timeline", which is one of the most often-recurring themes of Star Trek since Day One. "The City on the Edge of Forever" is a prime example of how they explored that theme, as well as "Yesterday's Enterprise."
There are a lot of ways they could go for the next movie. I think a re-introduction of the Klingons is pretty likely, in fact. I wouldn't mind that.
I am
Dawg
