Stability will come only after all the countries will have their natural (ethnical/religional) borders (not those drawn by some drunken british idiot)
This will come only after decades of merciless slaughter that is just starting - we went through this already (in Europe) and it gave birth to another nation - Amuricans (Native Indians still appreciate this period).
Fuck Assad, half of the country was fighting against him. There is no way these people will come back if Assad wins. The way he reacted to the initial protests (beating, shooting into people) started this whole shit in Syria. Well it would take Gandhi to solve/calm down the situation, but Assad fucked up big time.
Kurds deserve their nation, they will get it sooner or later as they fight for it. But then we got the Turks and another slaughter (they're proficient in this, Armenians could tell some stories...).
The more I read and think about all this the more I think I will have to move into Canada or Australia