What will probably happen is areas of Africa who believe they should be independent will now fight for it ... This time against their own Governments.
South Sudan's independence will create a precedent and probably a domino effect at worst.
The DRC could split up to as much as four provinces and the worse example is Nigeria.
Now Sudan will be split into 'Christian/Muslim' Sudan.
What is the future for Nigeria? It will ofc eventually go down the 'Christian/Muslim' Nigeria because as we all know the religious groups have alot of fighting
And war will happen in Nigeria if that attempts to occur over the placement of oil and natural resources which is such a lucrative business. Just two examples of many in Africa
Zanzibar Isles will want to leave Tanzania and Tanzania would resist.
The colonial borders shouldn't be changed for a LONG time (Maybe 200 years, give or take a few years depending on Africa's progress).