Would be interesting, because I don't expect them to do any serious changes to the formula. Killing off any of the TOS main characters in the second film after just having re-introduced them?
I agree completely, that would be rather short-sighted on their part to do something of that nature. Not to mention the fact that it calls to mind the ending of TWoK, and I'm starting to think that J.J. and Co. are serious about trying to find their own voice and not simply re-do what's been done before.
As for those uniforms we saw some time back, I almost got the impression that they weren't
Starfleet unis and that Scotty and Chekov perhaps were infiltrating another organization (Section 31, maybe?) I'm just sayin'.