Now please, before you get your horses up, this is official, it is an accident on Pokemon.com. It was later taken down swiftly, just in case you see unusual the webpage, it was quickly replaced back with the Sylveon image. Now as you might expect, this new, extremely rare Pokemon is humanoid, with some deep green characteristics.
Could this be the new Lucario/Zoroark? I really can't tell, but judging by it's appereance, he resembles an Alien, like Deoxys, and has a few green balls around his body. Now comes the most important part, it is supposedly named (in Japanese) "Nazo", which means "Mystery" on English. I am lucky to enter the webpage in time and was fast enough to save an image and share it with you guys. Without further ado, here's the image:
Surprising right? It seems we will expect this Pokemon in the next issue of Corocoro.