What present day nations do you think would form from Mittleafrika? How many whites will live in Mittleafrika post independence? Could we see an apartheid like situation?
Why ? ... given a mayor CP-victory ? Colonies were bargaining chips on european negotiation tables, despite whoever actually controlled them.German Mittelafrika plan was indeed very unreasonable.
Germany is lucky if it can even keep these holdings in Africa what it had on 1914.
I am thinking the notion of Mandates and more stewardship is still introduced, perhaps by a neutral USA who brokers a cold peace, or perhaps it is used by the British to water down German gains. Based on some of the possibilities I am hopeful the Germans take it seriously and both their holdings and Africa in general sees better investment, less warfare and a better transition from colonies to states. One thing I feel is a wildcard is German population growth. Germany has more people and less space, even using lowered birth rates akin to the modern era I can forecast 125 million or more Germans in an admittedly bigger state but this may lead to more Germans moving into the colonies with whatever consequences one imagines. One can go down the path like South Africa or one might see a bright pluralistic and developed German "commonwealth". I prefer to ponder the latter since out timeline is dismal enough.