I wonder what it will look like? From what I remember, the Germans tended to build up their colonies to stand on their own two feet.
That was the basic idea, though It did not work very...well, except for Togoland and Samoa.
The thing to understand id that very few of the european colonies were actually profitable.
This Is the main inherent strenght of Germany when compared to Britain: while the UK was very powerful, their power depended on their coloniale Empire. Once the empire, or to more precise, once India escapes their grasp, Britain as a world power Is gone for good, and even with no WW2, the chance that the British can keep the huge population of a whole subcontinent subdued Forever are rather...slim