Somewhat oddly, Satelight have decided to edit both Wings of Betrayal and Wings of Glory into one feature film to be released in September (despite a release date for Wings of Glory not even being announced yet). There's also going to be a new short which the official blog says is like "the comedy of the TV version".
Rather appropriately, the official website for the film is
http://www.gattai.jp, with the tagline "I want to combine with you once more..."
Was Aquarion really that popular in Japan? I mean, I liked it, but I thought we were in the minority!