During the A Conversation with the Russo Brothers discussion panel at the San Diego Comic-Con, it was announced to a very appreciative crowd that among other projects there may be a Battle of the Planets feature film in the works! In what should have been a huge hint to the direction of the panel, Anthony Russo wore a t-shirt with members of the team on it.
No real specifics have been revealed, simply because there are none yet. However, the following is what is known:
The Russo brothers' AGBO Films has a production deal in place and will look to develop Battle of the Planets as a feature film. What kind? Joe Russo said, "If we were to make it, it would be live-action," and "We love this show, I used to race home from school every day just to watch this at 4 o'clock."
The "If" in his statement refers to the fact they're not sure if the brothers will direct the potential Battle feature or produce it and hand directing duries off to someone else. Also, no writer has been chosen for the project yet.
All of this is, of course, very early into the process of the possible project. I hope to be able to pass along more information and details as they become available!