Firefly Returns?

http://www.denofgeek.com/tv/firefly/24267/joss-whedon-would-love-to-return-to-firefly
Long time readers will note that I'm a huge fan of this show, and consider its cancellation to be one of the great sins of modern TV.  But the followup film killed off two of the main characters, and I feel that it would be a struggle to recapture the magic of the original lineup...