I think it will be either West Virginia or Virginia Tech.
Slides right into the East, adds a State and new market, Southern culture (if not truly southeast), hasn't been in the ACC long enough for the move to tear any ties (they were in a differnt conference than Virginia forever), traditionally good football team.
Now, we would have to do something about those horrid uniforms they've been sporting this year. Maybe send them and Georgia to the same reeducation seminar.