Suppose Germany takes an isolationist position after 1871 - it tries to keep together the DKB as long as possible and afterwards allies Russia rather than Austria, for merely defensive reasons, as they'd also drop their colonial projects so as to better relations with France and Britain. Any World War is averted, if there is any European conflict it's contained to the degree of a small, regional fight. Now that the colonial masters get a practically free hand on the black continent, what does their vision regarding the region look like in practice? To what extent were the various great powers interested in pushing settler colonialism in more liveable areas, such as Algiers, Lybia, South Africa, Rhodesia etc. How were such prospects going to shape these respective societies? Just how much wealth was there to be extracted from the ground with masses of cheap labour and stability to discover resources and invest into their respective industries?
TL;DR - How much of a money grab could Africa have been if not for the WW's?