preguntas frecuentes for
Untitled Jason Bourne Project (2010)

It is unknown but it will most likely be an adaptation of the fourth Bourne novel, "The Bourne Legacy".

It is also possible that it will be completely new material, as both sequels were based on entirely new material and not either of the novels of the same name. Considering that the fourth novel is also written by a different author than the originals, this makes for an even more likely scenario.