Just got an email from Scott Levy, the main behind Levy Films and the upcoming Sounders documentary. He still doesn't have a release date for the film, but says he's hoping to have it finished before the start of next season. Before he finishes, though, he's looking to people such as readers of this site for some feedback and is soliciting it by making the trailer available to "subscribers."
To become a subscriber, all you need to do is fill out the free registration form on his website. He says he has no interest in using the information for anything beyond keeping people aware of developments with the film.
Up until now, Levy has paid for all costs out of his own pocket. In addition to feedback, he's also trying to find some sponsors to push it across the finish line. From everything I've seen, it looks to be an absolutely beautiful film that will show sides of the Sounders players, coaches and supporters that we've never seen before.