I have never been a big Kano fan, and I really hated him in 9. His moveset just didn't click with me, he felt half done.
At first he felt like a generic MK fireball character, but then they nerfed his knives, and all that was left was a bunch of awkward specials, and crappy normals.
Everyone always seems to want them to buff his knvies back and make him a zoner, but MK already has enough fireball characters. I would rather them remove his knives and make him more of a pseudo grappler, more focus on the mobility then raw damage. Like Abel or Shazam.
Let him move around the screen with his canon balls, give them more control on where they go, either by letting him cancel it, or have even more variations where he goes up and then lands in specific ares of the screen. Then base a lot of his up close game around a combo starting command throw.
I don't know something different, as a fireball character, he was kinda boring with just knife toss.