I believe both will be headed to DII. No way ND will not grant a good Catholic family of 6 a discount just to stay in DI, that would go against the core of catholicism.
As for the Christians they just spent a lot of money and they wont want to go back to mediocrity that fast. That coach from GA has them on some good future players.
In 2017 both of these schools plus Boyd, Silverdale and Grace will all be DII schools as all of them give multi student discounts to their paying families.
Oh and ND takes this one by 8.