Well, the anvil is leaving because it doesn't need to be there anymore (Saddam is gone and the Iraqis are free). That means that the only place the Wahhabi hammer can fall is directly on the head of the royal family. Wonder what they're going to do?
They have already begun clamping down on the extremists. This is all part of the Bush Doctrine, BTW. (GWB to Saudia Arabia, 'fix your problem or Rummy will')