You know how we keep hearing about the possibility of a "Spider-Man 4," a "Shrek 4," and a "Pirates 4"? Well, don’t get ready for a "Bourne 4." (At least not one with Matt Damon in it.)
While sitting in on an "Ocean’s 13" press event at Cannes, Matt Damon said that he’s definitely done with the "Bourne" series. His exact quote, as a matter of fact, was "the Bourne thing I’m definitely done with," which is about as clear an answer as you can get.
He did, however, add that the series might continue with a different actor. Kinda like James Bond, I guess. But considering how much money "The Bourne Identity" and "The Bourne Supremacy" made, I’m betting the producers will throw a few offers his way — just to be safe.
Source: The Daily Telegraph