Winter and Lily are uniquely unable to leave Locke on any permanent basis - finding a new college would be an option, but they just bought a new house within the last month, and it would be difficult to impossible to counteract that decision now; too much has happened. So not only will they not actually be leaving, but I don't even think they could passably give the impression they ever would.

So, uh, I guess I'm tagging to say that there's no way in hell they're leaving, and the mafia is likely to notice when one last bookcase is delivered later in the week.