my bet is on a new shaymin forme

Alot of people say it is a Lucario evo, but I highly doubt that.
The reason being that Lucario already stared in a Pokémon movie, why would Nintendo evolve the Pokémon and give it another movie?(The Pokémon is the star of the next Pokémon movie)
I think it is just a new Pokémon with no relation to old Gen Pokémon.
By the way, our group avatar depicts it as a Lucario Evo.

It is probably some entity of darkness or something like that.

Well, actually the first thing I thought: Oh noes, even more Lucario-stuff :( But the movie-theory satisfies me :D.

Well, what could it be? I think a Dark / Fighting type with a not-so-creative name.

I don't really care what it is, I've always wanted a werewolf Pokemon.
And do you think its pre-evo will be a human?

Idk..That sprite kinda reminds me of Weavile.

Edit: I was just on Serebii, and a new sprite was confirmed! It's a Fox-type thing.
http://serebii.net/generation5/

Thanks for the link mercury, that wasn't as cool as I thought it woulb be, but Gen 5 all the way

its out, but its like mthe gne 5 lucario

it will be dark type, and maybe be something else, maybe even fighting.

I highly doubt a secondary fighting type-I think it will be pure dark type.

Well, they confirmed a pure dark type. It looks lame. 5th gen Lucario, I'm sure of it. Lucario has a movie, this thing gets one.