Fighting mii...not a bad idea actually...But I would like to see some other types of guys. Here is what I think:
Maybe it'll be like texture or skeleton type guys...actually it might be like the fighting wire frames with a complete inner moddeling and weird textures and stuff. I hope that if they make them again instead of just guy and girl, they could make guy, strong/slow guy, Fat/really strong/really slow guy, girl, fast girl, and little girl thats fast but weak. It would add more variation.