Star Trek: The next movie will probably be a reboot. Hopefully the new creative team will do a better job than J.J. "I love lens flare more than Trek" Abrams. The Prime universe is dead (outside of books and the garbage that is Star Trek Online).
It won't be a reboot. Abrams will still have input and anyone coming along after Abrams will face quite a challenge to improve on his films. His films aren't perfect by any stretch but given what Paramount appears to want, he'll be a tough act to follow. Naturally this will upset The Committee for the Way Things Ought to Be, but that's not really a big deal to Paramount.