The petition reads:

It is in the company’s best interest to remove David Benioff and D.B. Weiss as writers on their upcoming film. The writers have a crutch for plot devices and rushed stories, with emphasis on “shock and awe” storytelling and eager to leave projects half-finished when they have other projects on the horizon. Their respect of lore alone does not make them fit for this project.”  Benioff and Weiss are currently working on a Star Wars trilogy. According to Disney CEO Bob Iger, the first movie of the trilogy will hit the big screen in December 2022. Lucasfilm President Kathleen Kennedy has mentioned that they will be working closely with The Last Jedi director Rian Johnson to map out the next decade of Star Wars films. Early rumours seem to indicate that the Game of Thrones showrunners would be writing and producing a Lord of the Rings style Star Wars trilogy based on the Knights of the Old Republic video game if not just set in the Old Republic. However, a recent report suggests that they might be working on something else altogether.  

There s a Petition to Stop Game of Thrones Showrunners From Making Star Wars - 81