>>51111416>>51111551Those are obviously placeholder names because they simply mimic the titles. Pre-release material called Nate "Blacktwo" because his game is Black 2, and called Calem and Brendan "Xavier" and "Orlando" from the letters X and O (in fact, in the japanese pre-release material their names were literally Ex and Omega).
Same in gen 7, they showed the proper names (Elio and Selene, Yoh and Mizuki in japanese) but also the placeholder names (Sun and Moon, because their games are Sun and Moon). The girl's name isn't "Violet" here so it's not a placeholder, she's really called Juliana (Aoi in japanese).