>>41317925She'll be fine.
Every gen there's three female Pokemon that represent the main waifus: Gardevoir, Lopunny, and 1 other that changes. Sometimes it's Mawile, last gen that was generally Tsareena, in the past it was Meloetta. Hatterene is hurt in much the same way Gothitelle was: unless you go way off model she doesn't have an easily sexualizable body at first glance. She might still make it into that Top 3 because she's got a much more conventionally feminine face than other Pokemon though.
She's going to be really popular here for a couple months though, but once the shiny newness wears off the real test of her staying power will begin.