This is a clear longshot but worth a try - invite Stanford and Cal along with Oregon and Washington and use those additions to lure ND.
With the new scheduling model ND’s permanent opponents would be Pitt, BC, Stanford, who they have always played anyway, plus 5 more ACC games (like they are already contractually obligated to play). They can sign OOC contracts with USC and Navy and the schedule would not meaningfully change.
I doubt this would work, but it’s time to be proactive and exhaust every option. Maybe ND is annoyed by the B10’s aggressive power moves and sees this as an opportunity to put that league in their place and reset the landscape