UConn might well be next in line, but I wouldn't count on it happening unless there are one or more additional defections from the ACC. And such additional defections would be a sign of further instability in college athletic conferences, so who knows what ripple effect they might have.
I think UConn's current conference situation is more of a long-term problem than a short-term one. UConn should be able to cobble together a reasonably competitive schedule for each of the next three years. For one thing, Louisville will be in their conference next year, and I'm sure they'll play home-and-home. It's possible that if UConn is stuck in the AAC for a long period of time, the conference's weakness (once UL leaves) could negatively impact UConn. But it's also possible a strong UConn will make the rest of the AAC stronger as well -- as was the case with the Big East over time.