For all things Whedon, check out this lengthy interview. Interesting bits:
IGNFF: What is the current future of Firefly?
WHEDON: The current future of Firefly is that I'm writing a movie script that I have some hope of actually getting made.
IGNFF: What is the current production status on the Firefly DVDs?
WHEDON: They should be coming out in the fall. Late fall.
IGNFF: The full-on special edition?
WHEDON: Oh my god. They couldn't be specialer. We've got three unaired episodes, commentary by every cast member, big interviews with everybody, gag reel – all kinds of stuff. It's just bells and whistles, and they'll be in the right order. And widescreen. So it really couldn't be better DVD package... a wicked one, at that. They really went to town on it. I was like, "I don't know if they'll release them on DVD, because it was cancelled," and they're not only releasing it, they're doing everything. I did the commentary on the two-hour pilot with Nathan. He and Alan did one together... Alan Tudyk. It's really exciting.