There are some problems I've noticed about East Africa:
The Leader of Ethiopia is Newaya Krestos which is correct but he was a member of the Solomonic Dynasty, Newaya Krestos is just his given name. For example the next emperor of was Newaya Maryam, his oldest son. So that should be fixed. Additionally the government probably shouldn't be tribal but a regular Despotic Monarchy, Tribal Nations have a lot of stability issues that simply never happened in Ethiopia until the 18th century
Secondly the Mogadishu Sultanate is the wrong culture, wrong name and the wrong capital.
The state's name should be Ajuraan Sultanate or Muqdisho, why the heck is the name Mogadiscio? That's Italian! The capital should be Mareeg in the Mogadishu province. The culture of all 3 of its provinces should be Somali. Also I've never read anything about Somalia being vassals to Zanzibar? Also Ajuuraan should know where Adal is.
Also would you consider adding the Warsangali Sultanate?
In Nubia Darfur could use some work, by the 1400s the Daju tribe ( http://en.wikipedia.org/wiki/Daju_people ) had been defeated and driven into Western Darfur and Chad by the Tunjur ( http://en.wikipedia.org/wiki/Tunjur_people ). So the rulers should be Tunjur.
Also shouldn't Kanem-Bornu own that Djado province (that thin little stick province) instead of having it uncolonized?