imagine dying as bruce's neglected child then being reincarnated as clark's newborn child the youngest and normal, no power, one he had (should the child retain his/her memories or nah?). One thing for sure tho, she/he exactly look like his/her past self. She/he, of course, is adored by her older brothers and parents. Being the normal one with no powers, makes the superfam very overprotective and borderline obsessive toward their youngest family member. Wonder what would be the batfam's reaction once they see her/him.
one of the commentors suggested that the reader should look like Martha and I think this is a good idea! When they were still a Wayne, Bruce would actively avoid looking at her. When batfam saw her as a Kent, Alfred would choke up and Bruce would be stopping tears. Double trauma bish-
As for the name, do you think they should have the same name? Wayne!reader is so neglected/overlooked that batfam don't even mention them to their friends so Superfam coincidentally chose the the same name?
As for their memories, i think for the earliest part of their life as a Kent they didn't regain their memories from their past life but when they met the batfam later on, like some sort of trigger, they regain their memories.