I always find it somehow amusing to read timelines with the Central Powers winning World War I and forcing the Entente to surrender their colonies to Germany and maybe some other nations. A speciality among these TLs are the Confederates siding with the Entente and the remnant USA siding with the Central Powers.
But even in OTL Germany had its Mittelafrika plans. But I somehow doubt that Germany, even in the event of sovereignly winning World War I, would ever be able to really enforce their demand of sacking British and French colonies.
Did Germany ever have a navy that is worth to be called a navy? Is a Deutsch-Mittelafrika ever practicable to be enforced? And if yes, could Germany even sack India or even Dominions?