(SPOILER)Newsarama is LIVE at the Dark Horse panel at WonderCon 2010.
Still on-going right now. Mentions of the Wash one-shot, the Book graphic novel, Zack Whedon's Terminator series, and of course the requisite Buffy Season 8 news. Some spoilers about S8, regarding some fan favorites. I think that covers all the expected Whedon-ish stuff, but there may be more in a bit. As I said, it's live.