ND has actual and quasi rivalries with a number of schools as well as universal appeal and hatred. That had value, has value and will have value going forward, at least until CFB gets watered down and team identity is based on something other than their rival.
That said, imagine if ND could stay independent and play schools from each division. Or if they went to the SEC but retained rights to play Big10 schools.
ND’s identity has been “we play anyone anywhere and take all comers”. Incorporating that into the new works order will continue to make ND unique and an attractive brand.
Of course, that’s a football perspective. The rest of the sports - less an issue for us.