Look at the comments on this article. Seems to me, I'm not the only one who's concerned that delaying the next movie will create a Nemesis situation again. The impatience of the fan base is also showing itself now.
In short, they need to get this damn thing going or interest in the franchise will decline (again). At this point, I'd be happy if Abrams does what he did with the upcoming Mission Impossible...let someone else direct and he produces.