Am I very confident? No. The specific difference between this deal and other deals is the sponsorship of the President of Sudan and the President of Uganda for the deal. In the past, the political wild card in any peace deal was the active role of Sudan, the competition over oil, the tense relations between Sudan and South Sudan, and the ability of sometimes small, sometimes mid-sized, military groups to go and seek support from Sudan.
On November 5th, 2018. See this statement in context.