I'd like a film that respects the spirit shown in the ENTERPRISE "Mirror" episode, and the NEW VOYAGES fan film series, namely, change NOTHING but the faces of the characters. Leave the ship, uniforms, tools/weapons/etc. alone. Let everything look as it did, and move on.
We'll get used to the new faces. If they want to do this movie as part of the original TREK timeline and not change continuity, fine.
Then let them do it that way. Change nothing that came before.
If they want to ADD TO IT, fine, so long as it changes nothing.
Maybe we get to see uniforms worn at a point in time never shown before. Maybe we get to see ship designs never shown before.
Don't change anything that's already been seen, tho'.
ENTERPRISE got away with it on national TV, even putting the "Mirror" versions of the ENT crew in TOS style uniforms. I find it hard to believe J.J. can't do something the TV people did....namely stick with what came before and MAKE it work again.