This would be the first cycle in which Republicans have total control over the redistricting process at both the executive and legislative levels. How much more can they grow their majorities in the legislature, or (like their counterparts in Alabama) are they pretty much maxed out, and that the best they can do is simply hold on to what they have?
I guess - mostly second option. They (Republicans) may gain a couple of rural seats, still represented by white Democrats, but - few of them remain, so - gains there will be minimal. On the other hand - they may lose a couple of suburban seats, so, most likely, they are maxed out. Almost all "Black seats" are unaccessible to Republicans.. Almost the same situation as in Alabama (and Louisiana) - vast majority of whites vote Republican, while almost all Blacks - Democratic.