its very difficult to say, the separation was inevitable..... like is known very well, politics is a complex issue...... south sudan is no exception.... oil rich region of abyey which is between south and north, other conflicts of the south with other groups of the south sudan, and LRA and chadian groups, i mean really it depends if and only if selvat kiir can address if not all but most of the concerns of the tribes and atleast try to make peace and dialogue with all of them.....i know its asking a lot becuz there are atleast 10,000 trbes there but they have their ways..... again a very complicated and delicate process..... needs to handled with care....