Everything is moving fast but there is little doubt the CHL is going to expect players to honour their contract and play their four years or risk loosing their school package.
And I really don't see the NCAA competing directly with the CHL for players but instead offering continuing development for the remaining 99% of players who do not sign a pro contract.
The NCAA D1 programs have resources and facilities better than most CHL / AHL and some NHL teams. Factor in all the intangibles including education, training, experience, NIL, etc and I doubt the kids will have any hesitation in choosing the NCAA route if offered.