I mean a ballroom dancer isn’t out of place when Helena is a Opera singer and CEO, Marie being a maid and Nico being a scientist. All DOA characters technically could be fighters. Personally I hope Tammi or Nagisa are making it into the game since they’re my favourites, but I don’t mind any of these 5. After that hint I doubt it’s a new girl tbh.
all of these characters have viable reasons to be fighters that have been explained through the story, specifically Helena. Helena is the daughter of the one who created the DOA tournament, and essentially MIST. She witnessed her mother being murdered in front of her when it was supposed to be her. She has more than enough reasons to learn to fight. Marie Rose is the “devious maid”, so she is really supposed to be Helena’s body guard more than an actual servant. Plus I am sure she is supposed to have ulterior motives that part of this “devious” maid persona. NiCo is the lead scientist in MIST and she brought back Raidou, so yeah, she needs to know how to fight.
Fiona has no reason to based off what we know of her and we already know that no story explaining why she all of a sudden knows how to fight will be added to the game, so IMO, she would be a lame edition. I also feel like many of the VV would be lame editions, they’re either aesthetically boring, boring in personality, or both (Nagisa I am looking at you).
Thats why I would pick Kanna, Tamaki, or Sayuri. They either could have a purpose, would bring a fun/different personality to the game, and/or be more aesthetically interesting when mixed with the current DOA6 cast. I also feel like these are the girls that they actually put the most effort into making in VV. Kanna isn’t human, Tamaki was the first to not really share a body type with the other girls (plus her hair is bad ass), and Sayuri is so much prettier than much of the cast in VV that she has to have a different face model. The other girls don’t feel as inventive.