My sense is that they will observe and calculate the outcome of the 2004 election: if Bush looks vulnerable, they will not move against the terrorists because any of the wraiths in the Democrat primary mix right now would be easily manipulated to retreat to the 1999 status quo.
If Bush is successful in Iraq, if his re-election prospects look likely, the Saudis, like Frank Costello of the NYC Mob in the 40s, will do what's best for business. Luciano was a very useful asset but when his killing became personal, he became a liability, and he ate lead. Bush means business, it's going against George W. Bush or a least favorite brother and 25 other troublemakers and power brokers ... goodbye Bro, the business comes first. Lucky Luciano, Nitti, Siegel, Giancana, Castellano, Jack Ruby, FREDO, Luca Brasi, Ron Brown, Vince Foster ... all were missed after they were killed for valid commercial purposes.
It'll be the same with the Saudis. Prince Naysid may be a good subject for a Dead Pool. How about a boating accident? They'll just kill as many of the Islamist benefactors within their family and borders as necessary to keep their filthy rich/dying of old age lifestyle business alive and send the unmistakable message that there's a new business model in the Kingdom and non-compliance warrants a negative sanction placed in their permanent personnel file, which will be active for approximately 2 hours until they die a slow death by torture and disembowling before a hastily called all-company staff meeting.
Abdullah and the pragmatists haven't been pushed to the brink yet, but I'll guarantee you there is HUGE intrigue and machinations underway in that incestuous cesspool, and the outcomes usually have unhelpful family and citizens dying in violence.
I'm impressed. That is EXACTLY what they're doing. The only support we've really received from the Saudis has been limp wristed and token while they wait out the current election cycle in the hopes of getting another Clintonista back into office. Their investigation following Riyadh has been only to reassure a frightened populace that they're real leaders and will keep them safe. Everything is rhetoric with them, as long as it preserves their hides, and they do not care HOW many innocents are killed as long as it isn't one of the inner circle.
After GW is reelected, their attitude will change temporarily.