In today's Nintendo Direct, Nintendo had two announcements regarding our hedgehog friend, Sonic. In addition to the announcement about Mario & Sonic At The Winter Olympic Games' online multiplayer capability, Nintendo also confirmed that he will return in Super Smash Bros. for Wii U and 3DS.
While most people did not doubt he would make an appearance, the official confirmation is surely pleasing news to anyone who used them as their main in Brawl.