Once upon a time, Buffy the Vampire Slayer star, Sarah Michelle Gellar was adamant to not return to that world as to leave it in its "perfect bubble" (as she put it). But time changes minds. While on The Drew Barrymore Show, Gellar had this to say regarding a Buffy return...
“It’s funny. I always used to say no, because it’s in its bubble, and it’s so perfect,” Gellar said. “But watching Sex and the City [sequel series, And Just Like That] and seeing Dexter, and realizing there are ways to do it, definitely does get your mind thinking, ‘Well, maybe.'”
And it doesn’t have to be a prequel. “It could be anything,” the actress said. “It’s a universe. And it makes you realize that in this world, we need those heroes, I think, more so than ever.”
Source: The Hollywood Reporter