For anyone visiting here who misses the show, don't give up hope yet! Remember when Ron Howard said "Maybe a movie?" He wasn't just saying that. Mitch really did think that he might try an Arrested Development movie or special at some point in the future. While it seemed for a long time that this was probably not going to happen, there has been some buzz as of late that at least lets us know that the idea isn't dead.
What can you do to help? Truthfully, not much. At this point, it's not even sure that Mitch has an idea for the movie, much less whether he's actually considering moving forward. However, you can sign a petition to keep the voices of the fans being heard and let everyone involved know that there is still a demand for more AD!