Considering the fact that the coup was supposedly to better fight the rebels, it seems like a pretty big failure so far.
Yes and no. The troops were tired of being treated like expendables used to keep the Azawad part of Mali. I hope folks haven't yet gone out ad bought new maps with South Sudan on it. While the coup leaders have said they are restoring the constitution, they (or a restored civilian government) may decide to give the the rebels their independence rather than fight a war to retake what has been lost.
I guess that would be the best solution, but considering the tendency of rulers to systematically take the wrong decision when it comes to a region asking for independence, I wouldn't bet on that.
