At that point he was in the process of making a movie version of Firefly, which at that point was due for release in April. In a wise move, the release has been pushed back to September to avoid certain other high profile sci-fi releases, however to whet our appetites, they’ve released an exclusive trailer. (The linked version is a HD Quicktime 7 version if your machine can cope with it, for the Quicktime 6 version have a look here.)
The movie appears to be concentrating again on the story of River, who at the start of the series had been rescued from a top secret research project by her brother. As happened during the series, it looks like the project want her back – or dead.
If watching the trailer piques your interest, the series is available from Amazon: