The NCAA will rule that Duke and K knew nothing of the arrangement, so no rules violated and no punishment required. Case closed. Then they'll throw the book at the next school that gets caught up in a similar situation.
I have zero interest in another Indiana series. I don't personally know any other Kentucky fans who do, either. Honestly, the average UK fan on the street couldn't care less about a series with any particular school. They just watch whatever games turn up on the schedule.