Thats true, would also like to go back and look at the time when Morg said she heard that big guy while she fought all the beasts from her homeland, Gosca I think his name was ? Think there has to be something there.
And yeah multiple candidates I mean Kou Empire has a few I'm sure, also makes more oppurtunites to introduce new characters, I mean comparing to other mangas like Naruto and One Piece, this has really just begone. Alot of possibilites.
: My bro is dead. He's gone! But he's there on my back, and here in my heart! He lives on as a part of me! If you're gonna dig, dig to the heavens! No matter what's in my way I won't stop!! Once I've dug through...it means that I've won! Just who the hell do you think I am? I'm Simon. I'm NOT my bro! I'M ME!! SIMON THE DIGGER!
: Your drill is the drill that will pierce the heavens!
(All quotes from one of my favourite Anime Tengen Toppa Gurren Lagann)