I think Richlands and Tazewell (and possibly Graham) end up in a combined A/AA district with come of the current CMD schools. Maybe something like this:

CMD: Abingdon (AA), Richlands, Tazewell, Lebanon, VHS, Battle (and maybe Graham)
BDD: Grundy, Dickenson Co., Hurley, Twin Valley, Honaker, Council
LPD: Union, Wise Central, Lee, Gate City plus Eastside and/or Burton
CD: Thomas Walker, Rye Cove, Twin Springs, Castlewood, plus Eastside or Burton

It makes more sense from an enrollment standpoint for Burton to be in the Cumberland and Eastside in the LPD, obviously, but who knows which way either would want to go.