Writer/director Colin Trevorrow left Lucasfilm's Star Wars: Episode IX over script issues and a souring working relationship with Lucasfilm head Kathleen Kennedy, according to The Hollywood Reporter. Talk of the apparent issues first bubbled to the surface in June according to the Hollywood trade's unnamed sources, with Trevorrow being asked to do multiple draft based on notes from the studio.
The hiring of Jack Thorne in August to do a new draft of the Star Wars: Episode IX script was reportedly done to fix the issue and avert the need to replace Trevorrow like Lucasfilm had recently done with Han Solo's Phil Lord and Chris Miller.
In Lucasfilm's statement announcing Trevorrow's departure on Wednesday, the studio referred to differing visions for the project.
Back in July when Lord and Miller were let go from the Han Solo project, Trevorrow gave a comment about the situation.
"Movies are very personal, and art is very personal, and for people to try to turn that into something that is salacious or something that will get clicks is frustrating and sad for me because I know that [movies] mean a lot to everyone involved," he said. "And everybody involved in that movie is passionate about it and worked on it very hard and continues to work on it very hard."
The Last Jedi director Rian Johnson and Force Awakens' J.J. Abrams have been rumored as replacements according to THR. Johnson is currently in post-production on his Star Wars film which leads into Episode IX, and has said in the past he would be open to return for a future Star Wars project.
Star Wars: Episode IX is scheduled for release May 24, 2019.