There was always the odd/even split in ST movies. The odd numbered ones tended to be a bit(3 and Generations), or sometimes very weak(5 and Insurrection), while the even numbered ones were usually pretty good yarns. The only even numbered one I didn't like was Nemesis because Berman and Braga totally screwed up the timeline, again!, on their way to proving that it was time to give the franchise a breather while saner heads at the studio tried to put Star Trek back together after B&B wrecked it.
If they do make another movie anytime in the near future, I'd use DS9 as the setting. Bring back Sisko, Worf, Odo, Quark and the rest of the crew, but leave the TNG crew home, or better yet, have them unable to respond to a fill in the blank(Borg, Dominion, Cardassian) threat because they're all visiting fill in the blank(Vulcan, Rigel IV, Risa) for a conference on the need to understand why the above chosen threat wants to destroy the Federation and if we can just listen to them, everyone will feel better about themselves.