A lot of dominoes need to fall but this is what I could see happening;
Idaho & New Mexico St. become football only members of the Sun Belt and keeps all other sports in WAC.
WAC stops sponsoring football and adds Utah Valley and Cal-Bakersfield to make 7 members for all sports. Maybe Texas Pan-American to make it 8.
Big Sky tells UND to take a hike, because dropping UND means they would have 12 football and 10 all sports members.
UND becomes the 8th or 9th WAC all sports member.
UND begs, borrows, and deal for a MVFC membership.