The Divergent movie only started shooting in early April, but already we’re learning that the studio is prepping its sequel Insurgent.

Summit has assigned Brian Duffield to pen the Insurgent movie script. His big writing credit right now is Jane Got a Gun, which has faced several production hurdles as of late. Most recently, Ewan McGregor replaced Bradley Cooper as the lead star.

The studio used their official Divergent account to confirm the news:

Word of a script in development is great news even though Insurgent hasn’t been officially green lit for production (as far as we know). We assume that Summit will want to get filming underway for Insurgent later this year or early next consider the script is already being prepared. We’d expect the Insurgent movie will open in theaters in spring or summer 2015.

If Divergent ends up not doing as well as Summit hopes, plans for the film could be scrapped.

The Divergent movie stars Shailene Woodley as Tris, Theo James as Four, and Kate Winslet as Jeanine.

Divergent is based on the book by Veronica Roth, who is in the midst of finishing the third book in the trilogy entitled Allegiant. The final book hits bookstore shelves on October 22. The cover is set to be unveiled this Thursday on NBC’s Today Show.

We’ll have more about the Divergent movie and the Allegiant book later this week.