Christopher Nolan (Batman Begins)
Doug Liman (The Bourne Identity)
Tony Scott (Spy Game, Man On Fire)
Paul Greengrass (The Bourne Supremacy)
Brett Ratner (Rush Hour 1 & 2, X-Men 3)
one of these, and I'll be happy.
With the exception of Ratner, I would have to agree with this list of potential directors.
My list would include:
Michael Mann: he's never made a bad film, and every one of his films has a great deal of visual flair and style, and would fit in to the Bond franchise very well.
Sydney Pollack: crafted a great thriller in The Interpreter and would certainly bring something new to the franchise.
Paul Greengrass: I would only be weary of him taking on a Bond film because of his connection with Bourne and the idea that EON would go after him just to copy the Bourne films. But, he would probably turn in a very good entry in the franchise.
Jonathan Demme: his films The Silence of the Lambs and The Manchurian Candidate were both fantastic, and he is very good at getting good performances from actors. Would be fantastic for a smaller scale Bond film that focuses more on character than all-out action.
And, someone that they should seriously consider bringing in to perform the duties of re-writing the script for a future Bond film would have to be writer/director Steven Zaillian. His writing credits include screenplays for ALL THE KING'S MEN (the new version, which he also directs), THE INTERPRETER, GANGS OF NEW YORK, HANNIBAL, A CIVIL ACTION (which he also directed), CLEAR AND PRESENT DANGER, and SCHINDLER'S LIST. He also worked on the story for MISSION: IMPOSSIBLE. And, if ALL THE KING'S MEN turns out to be as good as it looks, I would also add him to my list of potential Bond directors as well.