I think it is safe to say that the Arrested Development movie will never happen. Here is why:

1. Audience expectation - The show was canceled for poor ratings. While the audience has grown on eDVD, it is likely still not enough to sustain a proper box office. Certainly, people who do not like or know the show will not see it.

And with that, you have budget issues. How much money can be allocated to a movie with a niche audience? Also, what about..

2. Cast salaries - While all of the main actors have had more success since the show, Michael Cera, Jason Bateman, and Will Arnett have become much bigger stars. Is it any coincidence that Cera, the most famous of all now, has had reservations about making the film? Where would the production come up with the money to pay these people with a very low realistic box office take?

Successful series like Sex and the City can be greenlit because of money. Movie studios are not in the business of voluntarily losing money. Every young adult on the Internet loves the show, but that is never a good indicator. Every young adult was excited for the Scott Pilgrim nonsense, and it did very disappointingly at the box office.