Don't be delusional, there will never be another TNG film.
I have to wonder how much of the angst against "new Trek," from the old Trek actors is because their "stock," and thus earning ability is being diminished at Trek conventions - book signings - etc with the popularity of JJ's Trek? Every new ittiration of Trek I'd imagine makes former Trek stars less significant and less bankable.
Well, the entire TNG cast (minus Wil Wheaton) are appearing in Toronto this weekend, and a lot of people on my Facebook friendlist are excited about it.
(Wil's likely not going to be there for two reasons: one, we had him as a guest at Polaris just eight months ago, and two, scuttlebutt has it that he doesn't like the guy who puts on this particular show - which is not a fan-run convention, but rather a for-profit show.)
If I remember, I'll pop back into this thread next week and let you know what kind of reception they got. But I'm willing to bet right now that it will be enthusiastic.