I think young link should be brought back, but now he can use transformation masks from majoras mask as his down special. He would switch between zora, deku and goron link and ue Oni link as his final smash.
I remember trying to buy this gaame when I was 9 and my mom wouldn't let me because she thought the enemies looked scary. Ya know because I couldn't handle it after all of those redeads and dead hands I had to face in ocarina.
First of all, limit it to character per third party publisher. It is a nintendo fighting game, we don't need all of the sonic the hedgehog characters, we are fine with just sonic. Also make clones as alternate costumes.