The upcoming movie will likely be the first of a two-parter, although that has not been settled yet.
Dune: The Sisterhood is produced by Legendary Television, which is a division of Legendary Entertainment.
Dune: The Sisterhood has the potential to air as an ongoing series, as it has not been described as “limited” or “mini.”
Legendary has grand plans for all things Dune, including video games, a comic series, and digital content packages on top of the TV show and feature film.