The Legend of Zelda: Hyrule Warriors

[Sol]

That's certainly something I was worried about, considering Midna, and now Agitha and Zant have been confirmed, (Zant not necessarily in playable form) but we haven't seen any other game-specific characters. Then again, the first new playable character we learned of was Impa only last month, and there's still almost 2 months before the Japanese release. So who knows.