At least not anytime soon.
So what made him change his mind?
According to Vulture, it came down to "script issues."
Of course, such a reason seems a bit odd considering the as-yet-untitled film about a salesman who arrives in a small town only to have his whole life called into question, was cowritten by Krasinski and...Damon!
Meanwhile, Deadline is reporting today that director Gus Van Sant has agreed to step in for Damon and, as a result, the film is on track to start production in April. The site adds that the reason Damon backed out of directing himself actually came down to not having enough time to do so. He is, however, still planning on performing in front of the camera.
Of course, this wouldn't be the first time Van Sant and Damon have worked together, havng collaborated on 1997's Good Will Hunting.