It would appear that this ruling essentially eliminates VA-03, NC-12 and similar districts which connect extremely disparate areas to create a majority district
Edit: Apparently NC-12 isn't majority black anyway, so it would almost certainly be dissolved as a result of this ruling.
In this case, the North Carolina constitution has a provision against splitting counties for legislative districts. This can be overridden to comply with federal law, such as equal population requirements, or the VRA. The issue in this case is whether it was
necessary to violate the North Carolina Constitution in order to comply with the VRA. In essences does the right of equal participation in the voting process require creation of districts that the choice of the minority group can win.