Also, since aerial ace is based on the samurai Sasaki Kojiro "swallow cut" sword move, it would be cool to have a move based on one of his rival Miyamoto Musashi's techniques. Seeing as we have night slash (based on blade-testing) as well, we'll probably be getting more moved based on samurai practices anyways.
Mushashi's famous style was "two swords as one" or "two heavens as one", being a master of dual wielding. I could see it as a two-hit fighting or steel move.
I'm no expert on japan though, so input would be nice.