A number of sketches and an information sheet which is reportedly from Super Smash Bros Universe have managed to find their way onto a Japanese imageboard and have been picked up by 4Chan. Along with the character sketches more information has leaked about the characters that will be making an appearance. Super Smash Bros has already been confirmed for both Wii U and Nintendo 3DS.

King K.Rool

It says something about using crocodiles (Kremlings/Klaptraps?) as part of his moveset, along with cannonballs. The last line describes using great power to summon his ship. It will then fire cannonballs on the stage. (Final Smash?)

Ghirahimu

Uses a sword and evil magic. Final Smash is calling his master.

Crystal

Will use a magic stick. She makes barrier and shoots fireballs. Final Smash involves dinosaur friends?

Saki Amamia

Acrobatic sword user with a fast gun. Final Smash is a bit iffy. Something monsters or something.