From the outside looking in, it sure doesn't SEEM like he's giving a lot of priority to making it happen. He's continually doing other projects, like that racing film "Rush" coming out now....he might just have to sink several years of his life into it, to make it happen. Like Jackson did with LoTR....he did nothing else in that 3-4 year timespan....didn't start working on King Kong until LoTR was virtually wrapped...