Black self sufficiency
along the lines of Marcus Garvey.
In the city of Atlanta and the near suburbs- not the leafy exurbs so much- you'll see the largest concentration of a black middle class and a level of confidence and optimism you don't see in northern inner cities.
The future for black Americans is migrating back to the South.
As far as shifts in political power go, NC, GA, FLA and TX- which have the economies that would make reverse migration attractive- would more than compensate for MI, WI and PA.
Of course all 4 of those states have white power legislatures that would do everything they can to delay that.