The Hollywood Reporter indicates that the very busy screenwriter Paul Haggis is just about to get a bit busier, mainly because he’s been tapped by producers to do a rewrite on "Casino Royale," which is (reportedly) the next James Bond entry.
"Producer siblings Barbara Broccoli and Michael Wilson have brought back Martin Campbell ("GoldenEye," "The Legend of Zorro") to direct his second Bond. Neal Purvis and Robert Wade, who cut their teeth on Bond films "The World Is Not Enough" and "Die Another Day," wrote the previous draft. The search for a new Bond to replace Pierce Brosnan is under way.
The movie’s script is based on the 1953 Ian Fleming novel, which is the first, darkest and most violent of the Bond books. It introduced not only Bond, but the evil organization SMERSH, as well as model Bond villain Le Chiffre (French for "the number")."
The first cinematic adaptation of "Casino Royale" came in 1967, but is a comedic divergence from canon that’s not included among the "true" Bond films.