Joss hasn't responded to this anywhere yet? like on the net or something?
All we have so far is a tweet from "drhorrible" (the Whedon family's account) that simply says "Oy."
Now that I'm home I've been able to check out the relevant copyright and trademark notices.
The most recent Buffy product is the "Time of Your Life" trade paperback. On the copyright block it says:
"Buffy the Vampire Slayer (TM) & (c) 1998, 2008, 2009 Twentieth Century Fox Film Corporation. All rights reserved. Buffy (TM) and all other prominently featured characters are trademarks of Twentieth Century Fox Film Corporation. Fray (TM) & (c) 2008, Joss Whedon. All rights reserved."
And then it goes on into Dark Horse's copyrights. No mention of Kuzuis.
On the box of the Buffy season 7 DVD set, we have this:
"Mutant Enemy, Inc. / Kuzui Enterprises, Inc. / Sandollar Television, Inc., in association with Twentieth Century Fox Television. (c) 2002, 2003, Twentieth Century Fox Film Corporation. All rights reserved. "Twentieth Century Fox," "Fox," "Buffy the Vampire Slayer" and their associated logos and wordmarks are trademarks of Twentieth Century Fox Film Corporation. All rights reserved. (c) 2006 Twentieth Century Fox Home Entertainment, LLC. All rights reserved." And then Fox's address.
Mutant Enemy, Kuzui Enterprises and Sandollar Television, and Fox Television are all listed *before* the copyright. That means it's a production credit, not a copyright credit. Copyright and trademark holders are listed *after* the copyright and/or trademark symbol.
So Twentieth Century Fox Film Corporation is the SOLE owner of the Buffy intellectual property. Neither the Kuzuis nor Joss own any part of it. Therefore, this movie can only happen if Fox is willing to kick Joss and his loyal fans to the curb to make this movie. Considering they weren't willing to greenlight a movie for Joss himself, I find that unlikely.
(I'm pasting this message to other boards and sites. Everyone should feel free to spread this message, and post back here if you find anyone knowledgeable who can contradict this conclusion.)