And have you actually talked to any of the actors? i may not have, but i am sure it would be a yes from most of them, they all said that they enjoyed making it. A movie would be great, a new series even, but seeing season 8 on tv as a series, wouldnt any of you enjoy that?
Actually, the actors have been talked to. Marsters has said that he would love to reprise Spike, but only as long as he can still look like a 25 year old man. Eliza has said that she would work with Joss "anytime" (well, think "Doll House"). Those are the only ones who I know for certain have made a statement one way or another, except for the "Ripper" movie.
The bad thing is that both Sarah and David have no desire to reprise their roles unless it would be on the large screen, so that pretty much ends the story for Buffy unless the roles are recast, the same as franchises such as James Bond, Tarzan, or Sherlock Holmes, to name three, and I personally don't think the fans are ready for that yet.
Some sort of animated series or movie is a possibility, but I'm not holding my breath waiting for it.
About the only really viable solution would be, as I and others have said before, is some sort of spinoff along the lines of "Ripper" or a completely new story with new actors.