Mewthree?

Nintendo has recently released footage of a new Pokemon in Pokemon X and Y!  It looks almost identical to Mewtwo, which is why it leaves me to believe that it is Mewthree.  It proably isn't called Mewthree, but I can dream.  In the footage, you can see it fighting Genesect, Rampardos, Cloyster, Gyarados, Machamp, and Zangoose which confirms their inclusion in the game.  This Pokemon kind of looks like a cross between Arceus and Mewtwo.  The long mane Arceus has looks a lot alike the mane "Mewthree" has.

Pokemon X and Y: Poison Sylveon

Not many people believe that Sylveon will be a poison type, but I will go over it anyways.  I don't think Sylveon is a poison type, just starting with that.  Some people could think it is a poison type because of it's... I honestly don't know why anyone would think this thing is a poison type... maybe it's color?  I have no idea...

Pokemon X and Y: Fighting Sylveon

A lot of people think that Sylveon is a fighting type.  I can see why they think this.  The whip-looking things on its head and neck look a lot like the whip-type things found on Mienshao, another fighting-type.  That is the only evidence of Sylveon being a fighting-type.  Overall, I don't think Sylveon will be a fighting-type, but there is a possibility.