I would love to see a 4th Bourne movie and since The Bourne Ultimatum there has been a few tantalizing rumors that suggested it would be happening sooner rather than later.  Here is some brief information from Matt Damon regarding the next installment.  From Collider.com:

While promoting his History Channel special “The People Speak”, Matt Damon was asked about the 4th installment of the Bourne franchise and it’s not good news for fans of Damon’s alter ego. He said, “none us have kind of seen a script yet and Paul’s still cutting a movie that we worked on.” continue reading...