I suspect that if 336 is repealed, the FAA will write rules for model aircraft (God forbid) for recreational operations. I suspect it'll be what I call a "107 lite" where the person takes an online knowledge test as part of the registration process. The test will be on the "107 lite" recreational operational rules, reading a section so the person understands where they can and cannot fly, how to read a TFR/NOTAM, and where to get info.
I don't think it's going to be awful if it's repealed.