I don't think these are "Ultra Humans" that came about naturally within Ultra Space. I think they're just regular humans from earth who have spent a lot of time in Ultra Space. Either they've undergone biological changes due to the effects of prolonged exposure to the Ultra Space atmosphere or they've been intentionally genetically modified to survive Ultra Space for prolonged periods.
>>33763558Or this, actually, sounds really plausible. The new artwork REALLY hints at a permanent human presence in Ultra Space, with shit like buildings and street signs in the Ultra Megalopolis.
Would be really, really interesting if they explore such a concept deeply in the games, but given how the trailer shows Ultra Megalopolis literally being a fucking linear corridor leading straight to the Necrozma fight, I'm not optimistic.