Any interpretations of what may develop from all this?
That's easy...
If there is a screw-up on your watch and it is determined to be directly attributable to an error you committed, the FAA will put your prior commute under a microscope.
What the 'new-world-order' legal/criminal/certificate-action/etc. ramifications are going to be for an "irresponsible commute" resulting in 'fatigue' is anyones guess and probably is directly pertinent to the severity of said incident/accident.
It's easy to glean from reading the NPRM that the Feds don't trust the company to adequately address the issue and are sublimely shifting more responsibility/consequences to the pilots in hopes that we will do a better job policing ourselves in this regard...(good luck with that one FAA).