NCAA has to many rules to be able to compete with major junior. A lot of top end players will continue to major junior route as they can have top notch competion - early 16-17 and get an education package. Bse of both worlds. NCAA hockey teams schools can a pull a scholarship or reduce it if you do not play well.
My theory is that any player who plays in the CHL, that does NOT sign a pro contract, should maintain their college eligibility.
There are of course a lot of issues that people will find with this theory.
You have to realize that the NCAA is a money making organization, and they make most of their profit with Football and Basketball. Hockey isn't their main concern, so they won't make a rule to benefit the good of the game for hockey if it could hurt them in either basketball or football.