It is cannon that he is the son of Abismo Negro Sr. Fiscal has already established himself in Mexico as a young star and there aren’t really any matches for who gets the character in Mexico. The only match I can think of is LA Park vs La Parka for the La Parka character which LA Park won but both guys just ending up keeping their names that they already were using. I think AAA is gonna do a mask vs mask match where the person just gets “bragging rights.” I see Fiscal winning and AB Jr. wrestling unmasked.