I don't think there is any way to really know whether it would hurt or help your chances of joining a revamped ACC. It's not like UConn is moving the campus to the West Coast, so there will always be a fit between UConn and The ACC should they need replacements. If UConn were to hold their own in an upper G5 Conference I believe it would demonstrate their viability far more than playing a random assortment of Rice, FIU, and Georgia Southern. Boise, OSU, WSU, FSU is solid competition. Win that league and your program health will look pretty strong.