Creator Joss Whedon announced at Comic-Con in San Diego July 25 that he is planning a comic book series based on Firefly as well as the feature film he is currently directing.
The feature film, called Serenity and due April 22, will launch at least one comic book series most likely from Dark Horse Comics who also publishes Whedon's Fray title. No release date or other details about the comic have been released as yet.