Jason Bourne will return and Matt Damon will be reprising his role as the troubled former secret agent.

Matt Damon
Matt Damon starred in three of the four Bourne movies.

Read More: Matt Damon Open To More Bourne Movies - Will Be Team Up With Jeremy Renner? 

Damon's close friend and frequent collaborator Ben Affleck revealed Damon will be involved in the upcoming project whilst appearing together on Friday (7th November). The two reunited in Los Angeles to celebrate their joint venture Project Greenlight, a television show they produce which documents the attempts of new filmmakers as they create their first project.

As E! reports, Affleck was joking about the state of his physical fitness in comparison to Damon's when he accidently revealed Damon's news. Affleck said "Well, [Damon's] going to be doing a Bourne movie next fall when I've just completely lost any semblance of physical fitness."

Matt Damon and Ben Affleck
Matt Damon and Ben Affleck reunited in Los Angeles for their joint venture Project Greenlight.

Shortly after Damon confirmed he would be appearing in next film in the Bourne franchise. Damon explained the currently untitled Bourne movie will be released in 2016 and that Paul Greengrass would be returning to direct. Damon stated "It'll be in 2016 when the movie will actually come out. Paul Greengrass is going to do another one and that's all I ever said. I just needed him to say yes."

Greengrass has previously directed Damon in two of the films in the Bourne franchise: The Bourne Supremacy and The Bourne Ultimatum. The upcoming film will be the third Greengrass has been involved in and the fourth Damon has starred in. 

Jeremy Renner, who starred in The Bourne Legacy, is reportedly returning to his role as Aaron Cross in a separate film released after Damon's return. The Bourne film starring Renner, as Deadline reports, will be directed by Justin Lin.

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Jeremy Renner
Jeremy Renner starred in the fourth Bourne film, The Bourne Legacy.