I don't think PJ can get a sequel. First of all because of its fail, then its plot. They killed Luke, and he's a very important character in the next books.I kinda think the movies should do some new stuff, because otherwise you haven't broken any new ground, or done anything new with the characters. Take PJ, the plot's pretty different, but there's still room to do the rest of the series. Although the end confrontation was different, the alley for sequels is still open.
I don't want that to happen here with AF.