HBOMax and Legendary Pictures are working on a new series called 'Dune: The Sisterhood.' It's set 10,000 years before the events of the recent film--somewhere around the time of the Butlerian Jihad, a war between thinking machines and the human race.
According to Variety, who first broke the story, the show will follow Valya Harkonnen and her sister Tula as they combat forces that threaten the future of humankind, and establish the fabled sect known as the Bene Gesserit.
Frank Herbert mentioned the Butlerian Jihad often in his work. It was a defining moment in the history of the Dune universe, and it worked to shape the events of the first novel. But we weren't able to see what it was like until his son Brian Herbert and co-author Kevin J Anderson wrote their prequel series.
'Dune: The Sisterhood' will be based on their novel, The Sisterhood of Dune, which was released in 2012. It's a compelling story, suspenseful, gut-wrenching, and strange. It's not based on Frank Herbert's original universe, but if executed properly, it has the potential to be one of the franchise's best masterpieces.
As far as the adaptation goes, we don't know how faithful it will be to the books. Some people consider Dune's expanded universe to be blasphemy. They freak out every time they see it mentioned onscreen. Other fans prefer it.
Studios tend to take the demands of the fandom into consideration. They even have a history of running studies and large-scale surveys. The pre-existing audience matters, so they will try to find a way to please whoever they can.
They also have to find a way to translate the book into film. Unlike Frank Herbert's novels, the expanded universe seems to have been written for Hollywood. Much of it is made up of traditional scenes. It's mostly linear, and the imagery is easy to imagine. But the story itself is stretched out over a period of centuries, and it's one long, continuing plot with very few breaks in between.
In order to convert Sisterhood of Dune, they're going to have to somehow include backstories that would take up several hours to go over. There's too much material for flask backs and narration. Some of the characters at the center of the plot have extended lifespans. Their story encompasses multiple novels, and there's no separating that from what happens in the book. It's like trying to decode a soap opera that's been running every day for 30 years straight. They won't be able to do it.
So we can't expect a word-for-word adaptation. Major events will have to be altered. Some of the characters will be completely different. It'll be a shame to see them make all of those changes, but they will probably do what they can to retain the original magic.