On April 19, 2010, James Bond effectively died. After almost a year and a half of trying to get a new 007 film made while its parent studio, MGM, was spiraling toward bankruptcy, producers Barbara Broccoli and Michael G. Wilson finally pulled the plug.
That's when the London-based half-siblings issued a statement: "Due to the continuing uncertainty surrounding the future of MGM and the failure to close a sale of the studio, we have suspended development of Bond 23 indefinitely. We do not know when development will resume."
Source: Hollywood Reporter. Read full article. (link)