Alternatively, they could go the Tharja route and use renders of Kat and Haruka in more modest posing and clothes in their spirits, like their school uniforms. I wouldn’t be too worried about the whole Mai situation, either, considering we already have a sexualized character get numbed down, yet still works (come on, I don’t even need to type her name). We’ve got plenty of chances here, so long as select fandom “rules” remain in place.For example, Asuka is fine.
They will just have to avoid Haruka, Katsuragi, and Shiki spirit.
Although I will not say that today's events makes me worried. Not that the physics will be used in the first place. BlazBlue Cross Tag Battle is an example of using a watered down Senran character, worked well for Yumi.