I have no strong feelings other than I never was comfortable with Orci at the helm. And that when the director of the first two films leaves, the third film seems to take a nosedive (X-Men, Batman Forever, Superman III), but at the same time, often "third films" with the same director crap out too (Godfather III, Dark Knight Rises, anything by Michael Bay). So who the hell knows? I can only hope the script is better and less lazy than Into Darkness (even though I enjoyed the film on a purely visceral level) and that Lin gives us a good, fast, exciting movie with fine character moments.
Honestly, my only real issue with the last two Trek films was Kirk came off as a really immature frat boy on a kegger. Bring the humor and character to something smarter and less "ladies!!! Jim Kirk!!!," "Spock!!! That's deep SPACE!!!!!" and pranking the natives and I'll be just dandy. If they follow Kirk's maturity arc, I think I'll be satisfied.
That's a roundabout way of saying "I hope I like it. Let's see what happens."