I hope this means what I think it means…

Here's what I think:

The character I'd love to see the most is Mai Shiranui. but I fear her outfit might be a little too revealing for the game and she'd have to be toned down (and nobody wants that).

So we're left with 3 options:
1) Terry – Since he's probably the most recognizable KoF character after Mai (if it's him, I hope he get's his female version from SNK Heroines as a skin).
2) Marco & the crew from Metal Slug (They'd be like the Hero and Bowser Jr. having a different character for each skin. This one would certainly hit the Nostalgia bone of a lot of people)
3) Haohmaru or Nakoruru (Since Samurai Showdown just got a new game with the Switch Version incoming soon, personally, This is the one I'd want the least since I never played Samurai Showdown and have no attachment to the series, but then again, that's just me.)

so… yeah, here's hoping for Mai or Metal Slug.