"Star Wars: Episode VII" is undergoing some major changes. Screenwriter Michael Arndt is exiting and director J.J. Abrams and Lawrence Kasdan are taking over the script of "Star Wars: Episode VII." This news may come as a shock - it is being revealed that J.J. Abrams and Kasdan are completely changing the script.

The news was announced by Lucasfilm on Thursday in a post on the Star Wars website, The Huffington Post reports.

"As 'Episode VII' continues pre-production, Lawrence Kasdan and director J.J. Abrams have assumed screenwriting duties for the film," the post said.

According to the website Badass Digest, Abrams and Kasdan will completely rework Arndt's script, essentially starting from square one, The Huffington Post reports.

"This isn't a rewrite, this is a completely different movie with different main characters," wrote the site's editor, Devin Faraci, citing sources with knowledge of the situation.

According to Lucasfilm, "Star Wars: Episode VII" is still set for release in 2015. Production on the film will begin next spring, The Huffington Post reports.

Though this news of a shake-up of the "Star Wars: Episode VII" script may alarm some fans, Lucasfilm had nothing but kind words for Arndt.

"I am very excited about the story we have in place and thrilled to have Larry and J.J. working on the script," Lucasfilm president Kathleen Kennedy said in a press release announcing the news.

"There are very few people who fundamentally understand the way a 'Star Wars' story works like Larry, and it is nothing short of incredible to have him even more deeply involved in its return to the big screen. J.J. of course is an incredible storyteller in his own right. Michael Arndt has done a terrific job bringing us to this point and we have an amazing filmmaking and design team in place already prepping for production."