User blog comment:123VideoGamerNinja/Super Smash Bros for Nintendo 3DS/Wii U: "Leaks"/@comment-32390199-20140708191027

Ridley hasn't been confirmed to be unplayable or playable. It could be similar to how everyone thought that Toon Link was unplayable when the Spirit Track stage came out. Until Sakurai has a solid confirmation of it you can't cross that on off yet.