Waititi and Jemaine Clement will helm a US television adaptation of What We Do in the Shadows, their cult 2014 mockumentary, according to the Hollywood Reporter.
A pilot for the show has been ordered by FX and will be "written by Clement and directed by Waititi" it was reported.
It would also features all-new actors including Kayvan Novak, Matt Berry, Natasia Demetriou and Harvey Guillen.
Clement and Waititi are already working on a spinoff from the movie, called Wellington Paranormal, a six-part series set to air on TVNZ mid-year.
That series received $1,402,273 in NZ on Air funding and will focus on the two paranormal police officers who starred in the original movie.
Filming in Wellington has reportedly finished.
It's a busy time for the duo, with Waititi working on Bubbles, a Netflix movie about Michael Jackson's pet chimp, while Clement has a one-hour Flight of the Conchords special airing on HBO later this year, and is touring with his folk-comedy partner Bret McKenzie.
Waititi's career has taken off after the success of Thor: Ragnarok, a Marvel comedy movie released in October last year that was a critical hit and box office success story.
