Variety has reported that a potential spin-off series based on Agatha Harkness is in works for Disney+. If the project is greenlit, Kathryn Hahn will reprise her role as the character and Jac Schaeffer will work as the executive producer / writer on the project. For those who are not aware, Agatha Harkness made her debut appearance in Wandavision.
The character was originally created by Stan Lee and Jack Kirby with her debut appearance in Fantastic #94, which was released in January 1970. In the comics, Agatha is usually depicted as a much older woman and usually helped other mutants. She is mostly known as the nanny to Reed and Sue’s son, Franklin Richards. No other details about the project have been confirmed at this time so stay tuned for updates.