Most of Syria's oil reserves are in the Kurdish region and control of them would provide a financial base for whatever side emerges victorious.
The Assad regime may have abandoned the north, but Damascus recently has made headway against the insurgency, gains greatly aided by infighting among its opponents. So far the war is a stalemate, but it might not stay that way forever. Even Syrians opposed to the Assad government are tired of the fighting, and most have no love for the sectarian groups that have increasingly taken over the war against the Damascus regime. In short, the current autonomy of Syria's Kurds may be a fleeting thing.
Of course, it is possible that the Syrian Kurds might cut a deal with Assad: help drive the insurgents out of the area--maybe in alliance with the Iraqi Kurds -- in exchange for greater autonomy. That would enrage both the Turks and the Maliki government, but it is not clear either could do much about it.
Erdogen's support for the Syrian insurgents is widely unpopular in Turkey, and any direct intervention by the Turks to block autonomy for Syria's Kurds would put Ankara in the middle of a civil war. With an election looming next year, that is not a move Erdogan wants to make. As for Iraq, thanks to the U.S.'s dismantling of Saddam Hussein's army, Baghdad doesn't have the capabilities to take on the Peshmerga at this point.
What will finally emerge is hard to predict, except that a return to the past seems unlikely. Iraq's Kurds can only be dislodged by a major invasion from Turkey in cooperation with the Baghdad government. Given that Kurdish oil and gas are increasingly important to the Turkish economy, and that any invasion would be costly, why would Ankara do that?
And cooperation between Baghdad and Ankara has been soured by Turkey's willingness to ignore Baghdad's protests over its exploitation of Kurdish-controlled (but Iraqi owned) oil and Turkish support for the Sunni extremists trying to overthrow Assad. Those same extremists are massacring Shite supporters of the Maliki government in Basra, Baghdad and Karbala.
Turkey's Kurds -- between 20 and 25 million, the largest Kurdish concentration in the world -- are on a knife's edge. There is little doubt that the average Turkish Kurd wants the long-running conflict to end, as do the Turks as well. But Endogen is dragging his feet on the key peace issues, and the PKK may decide it is time to pick up the gun again and return to the old Kurdish adage: trust only the mountains.
The solution to all this is not all that difficult.
For Turkey, granting Kurdish language rights and cultural autonomy, and reducing the minimum percentage of votes to serve in the Turkish parliament from its current 10 percent, would probably do the job.
For Syria, the formula for peace would be much the same, with the added move of restoring citizenship to almost half a million now stateless Kurds. But that is only likely to happen after a ceasefire and a political settlement of the civil war.
The Iraqi government will have to bite the bullet, recognize that an autonomous Kurdish area is a reality, and work out a deal to share oil and gas revenue.
As long as Iran is faced with an attack by the U.S. and/or Israel, that country's Kurds will be out in the cold. The U.S. and its allies should keep in mind that sanctions and threats of war make a peaceful resolution of long-standing grievances by Iran's minorities, which also include Azeris, Baluchs, and Arabs, impossible. If the U.S. is truly concerned about minorities in Iran it should find a way to negotiate with the Teheran government over Teheran's nuclear program.
But the Iranian government, too, would do well to seriously engage with its Kurdish population. Autonomy for the Kurds is out of the bag and not about to go back in, regardless of what the final outcome in Syria and Turkey are. Sooner or later, Iran will have to confront the same issue that governments in Damascus, Ankara and Baghdad now face: recognition and autonomy, or war and instability.