Doing Season Five would be a huge apology to the fans for season four... not that it should be apologized for so much but I think fans really want to see the "old" Arrested Development instead of the character-centric episodes (which I knew would be an issue).  And considering the insane amount of contract negotiations for rights and salaries, it seems crazy to do that again for a movie which would have a diminishing return since only fans would CONSIDER going to the theater... most people will wind up watching it on Netflix anyway, why not cut out the middleman?