In every other reality we are something else. I would be amused, ecstatic if I could meet other versions of me. It's like a reunion of my identity so to speak. Maybe not, I might be a vagrant in another life, or something much worse. It would lead to conflict however as each of our versions would struggle to prove they are the "real one". Identity crisis!! Perhaps, I can not gauge that until it happens. But there's huge potential for a 360 perspective shift.
It doesn't matter what they are, I'd either hate or be jealous of all the other version of me.