I would argue Commonwealth v Neiman voided Megans Law 3 so for all people who were sentenced on it( which would probably be everyone but the ones in for life and post Sorna people ) there is no Megans Law to register to.
It is going to be whackcy, becuase I remember when SORNA went into effect. There were people screaming st the PSP Barracks that this was BS. One guy was less than a week from being done, and the reclassified him and made him life. Since then he was able to fight it, but it was only recently it happened. I think this time last year he finally got word that he was done.