Here's something that almost certainly won't happen, but which could make the situation in the Middle East quite interesting if it did.
The rebels in Libya currently control most of the oil fields. But they aren't very good at war, at least not yet. On the other hand, the Libyan Army isn't very strong either, because Kaddafi didn't want to get overthrown by it.
The strongest military in North Africa is that of Egypt, which borders Libya's Eastern rebels. A dynamic young Egyptian general, announcing he was coming to the aid of the Arab Revolution in Libya, could push Kaddafi's army back to Tripoli without much trouble. If he did, would he give up the oil fields? Would he push on to the Atlantic as the liberator of North Africa?
Of course, the concept of a dynamic young Egyptian general is probably something that Hosni Mubarak was at pains to make sure doesn't actually exist. The real Bonaparte emerged from after years of Darwinian struggle set off by the French Revolution.