I don't think Ryaback vs. Cena is ready for a 3 Stages of Hell match. Those are usually good at the end of a really hot months long feud and from what I've heard their feud has been anything but. And it's usually better when you put two ring technicians who can carry three matches in them (Austion, Triple H, Shawn Micheals). Cena ain't one of those guys and I don't know if Ryback will be totally gased after the first two.
08/23 - Alice in Chains
09/19 - Deafheaven
10/18 - King Diamond
11/01 - Suffocation
12/06 - Distant Worlds: the Music of Final Fantasy