That's an interesting take on it; I've always just run it as them remembering who they were ... but I guess since it's not amnesia and just memory then it could be two people - The Stormer designed, grown and birthed in a facility who is then trained and builds a life in SLA but also the prior life of the soul and the persona it powered in that prior life. Certainly adds a more quirky angle to it. "Verican doesn't like being Vevaphon ... Verican no longer kills ...EEEEE! Verican is Martha and is baking ready for the grandkids coming over at the weekend..."Spoiler: Show
I've always wanted to run a game where Mister Slayer finds out that he exists in an RPG, that there are other RPG's, and goes off to conquer them to take what he can for the WoP. The players would be part of a ragtag resistance movement, based out of the Floating Vagabond or somewhere similar, chasing Mister Slayer and his sinister agents through the multiverse to stop this. It wouldn't be quite as grim as SLA, it's basically an excuse for a giant crossover, but it could be a good time.
Cross-over could be fun. That'd be a multiverse traversing leap across the 4th wall! I think the term would be "gonzo". Slayer siding with the Yozi from Exalted with their Sith minions. But what's this? The forces of good seek to rally behind Elminster and the Aeon Trinity with support from the Camarilla!