Stop this click bait video about how Hayabusa “Might” join the Tekken roster. It’s clearly Kunimitsu. You base it on a 1 second clip of someone standing on a roof who’s from far. If it was a guest appearance they would’ve shown more.
But why Harada asked Shimbori who was that last character and Shimbori said I don't know https://twitter.com/i/web/status/1289447472545198081