Next Bourne Based on The Parsifal Mosaic?

[anomynous]

Q:

Would this come at all from the new book, "The Bourne Betrayal"?

Marshall: No, the "Bourne Betrayal" was written by a friend of Ludlum's.... It had nothing to do with us.... We want to stay true to the original character.

then.............

Q: Would you want to do a straight adaptation from one of the novels?

Marshall: Actually, there is. "The Parsifal Mosaic" is one that we like.

"The Parsifal Mosiac," not a "Bourne" adventure as a novel, deals with a U.S. spy who falls in love with another spy who is revealed to be a double agent just before her death. When he retires from the business, though, the spy learns that she may still be alive and sets out to learn the truth.

Instead of taking a book that has the Jason Bourne character because it was written by one of Ludlum's friends, let's take a totally unrelated book and make it the 4th Bourne movie.