Buffy the Vampire Slayer genius Joss Whedon has inked a new four-year deal at 20th Century Fox Television estimated to be worth over $20 million, Variety reports. The pact calls for Whedon to continue overseeing Buffy and its spin-off, Angel, as well as produce new programming for the studio. Whedon already has in the works a new pilot that could debut as early as next season.