Yes, quite likely.
Actually, it is possible even without Mongols destroying Europe.
For example: the Turkish tribes which created Ottoman Empire were not the most technologically and culturally advanced nation. But nevertheless they made a warrior elite in the Empire and they used most sophisticated military equipment of Europe and Asia. And they nearly took Vienna.
Let's imagine that some West-African Empire expanded to North-Western Africa at the time of Turks' prime conquering.
Here the Turks and the Africans after the initial bloody conflict came to terms to make peace among themselves (as being brother Muslims and stuff like that) and they cooperated to move against European infidels.
And the Turks and the Africans would divide Europe between them. The Africans would be wise enough to follow the Turks in borrowing new ways of warring.
My guess that the Africans would get Spain, France, British Isles and Scandinavia.
As for the Irish - they would be used in the African Empire's army. As a rule the nation which suffered most in the past is used by the new conquerors as support of the new regime.
And the Irish would constitute the core of the African elite 'janissaries' corps.
Lucky them!
*I insist that this is not total ASB. The only thing that Africans needed was a leader of some ability. Like Chaka Zulu.
Well some Africans with spears defeated Europeans even when those had machine guns.