We dont know much about the dead ones except Utakata with his bubble technique.
But I'd like to see Han's technique. When madara Talked about the beasts it showed Han running super fast with his 4 tailed Horse beast. Also I think he specializes in steam with that steam thing on his back. Plus he keeps his hand in his coat at all times, very mysterious. He's super tall with a sick samurai type outfit and he's covering his mouth.
Which jinchūriki are you guys looking forward to and why?