Legends of Chima minifig revealed at Amazon
Check out the cover of this book, Amazing Minifigure Ultimate Sticker Collection, to be published next year. It features what looks to be a Legends Of Chima minifig, bottom right.
I think that's the only unreleased one on the cover, though.
Update: LEGO has had the image removed after reading about it on LEGO fan sites.
(well spotted, Nori!)