User blog comment:Raheem The Dream/Manic & Sonia The Hedgehogs as DLC playable characters requested in SMASH 4 3DS/Wii U verisons!/@comment-6137196-20141103232512

Correct me if I'm wrong, but Manic and Sonic never appeared in a Sonic game. Just in cartoons and comics. With this they can't be in Smash.

If they add one more Sonic character, it would be Tails, Knuckles or Shadow.