I guess Jeffry Tambor (the guy who played George Bluth Sr.) confirmed that an Arrested Development movie is "in the works."

Hmmm... "in the works" is all we get for now? I hope this comes out before I catch myself saying "Wait... Wasn't there supposed to be an Arrested Development movie? I think I remember hearing something about it before this damn third ice age started."
Maybe it will be a series of DVD releases.

Source is here, but it basically just says the same thing I just did but with a bunch of fluff too.