Joss Whedon told reporters that he has plans for a ninth "season" of Buffy the Vampire Slayer comic books, as well as a sequel to his Dr. Horrible's Sing-Along Blog and comics tied to his upcoming horror movie Cabin in the Woods.

In a conference call Thursday to promote the Fox series Dollhouse, Whedon said that the "season eight" arc of Buffy comics is by no means the end of that story. "Oh, we definitely have a season nine in mind," Whedon said. "We're slogging our way through season eight. We've talked about doing more Serenity comics, and we've even talked to Dark Horse about potential for some Cabin [in the Woods] tie-ins."

"No Dollhouse comics, though. " Dollhouse is simply the least visually oriented of all and therefore lends itself the least to being a comic book," he said.

With Whedon starting Dollhouse and actor Nathan Fillion beginning the new ABC series Castle, scheduling may complicate plans for a Dr. Horrible follow-up. "We're working on the works," Whedon said. "That's another case of everybody being pretty busy, but we are definitely committed to the idea of Dr. Horrible reappearing somehow."

Whedon also co-wrote the script for the upcoming horror film The Cabin in the Woods with director Drew Goddard. "Ultimately, it's my and Drew's take on the classic horror movie, which means that it is a classic horror movie, but we also have something specific to say about it," Whedon said. "We have sort of a different way of saying it than we've seen before."

Having called the film a game-changer in previous interviews, Whedon remained vague about what he meant. He did, however, joke about it. "I think after it, everyone will love it so much that there will be no more need for movies," Whedon said. "That's how it's going to be a game-changer. You'll just want to watch that movie over and over again, and they won't make other ones."

Finally, the subject of a Buffy the Vampire Slayer movie, based on the TV series, came up again, with Whedon, as usual, nixing the prospect. "Nobody has ever broached the subject from the studio side," he said. "I think everybody's busy working, and so I think that it probably won't happen, is my guess. The landscape changes constantly, but until somebody who has billions and billions of dollars asks me that question, the answer's pretty much the same."