Why remake a classic? All of the elements that came together so sublimely first time around will be missing in the remake. Anyone remember the remake of 'Psycho' that used the original shooting script and score, but filmed it in colour with different (and less talented) actors and, crucially (and inevitably), without Alfred Hitchcock? It sank like a stone and deservedly so.
Tome Cruise is a massive star, but he has achieved that on his undoubted ability to market himself. He is not the best actor in the world by a significant margin and not in the same league as Paul Newman. I would rate John Travolta about on a par with Robert Redford, but he is now too old and too heavy to be the Sundance Kid in my opinion.