I pray that Joss doesn't do something like this for firefly, because I'm worried about how in debt I would go to assist in funding a reunion of that series...
Also with the huge success of Avengers, Joss is going to be busy directing big budget sci-fi/fantasy/awesome movies for a while.
With low budget Shakespeare/awesome movies mixed in between,
e.g. his just-released Much Ado About Nothing, briefly reviewed here (and the trailer's embedded):
http://www.npr.org/blogs/monkeysee/2013/03/08/173808228/joss...
(Firefly fans: Nathan Fillion is in this one.
As is Clark Gregg (aka Agent Coulson from The Avengers) and other actors from other Whedon projects).
http://danharmon.tumblr.com/post/23339272200/hey-did-i-miss-...