If managed properly, with the rise of more independent and autonomous regions, then this can be a blessing in general for most Afro descendants around the world. Demographics is destiny.
An Afro world(not one where everyone is African or Afro-descendant but one where Afro descendants see themselves as people that can move independently of other groups) is soon going to be a reality.
There is already one, not so strong but it will become stronger in the next couple of years...Afro descendants will eventually center themselves in a Afro world. Trade, tourism, digital world etc will be strictly among Afro states, with minimal outside influences. But again, if managed properly, and starting with Africa and Africans. There is a shift currently happening, but it is not enough, way more needs to be done.