Coro Coro came out a few days ago in Japan revealing the special Mythical Pokemon Diancie! Yesterday North America followed in its footsteps and Nintendo of America revealed special footage showing off Diancie in action, along with a promise of an event distributing Diancie that would be "revealed soon".
Diancie is indeed a Rock/Fairy type and is described as an accidental transformation of Carbink. Groups of Carbink will sometimes gather around Diancie, but Diancie pays them no attention and does whatever it wants. It is said to be the loveliest sight in the world. Diancie will be playing a major role in the upcoming movie starring Xerneas and Yveltal.
It seems as if our lovely hacker from a very long time ago was correct. Can we expect Hoopa and Volcanion to follow soon?
News taken from Serebii.
As soon as Nintendo of America decides to reveal details of the Diancie distribution you can be sure we'll be on it to inform you guys!
Also, for those of you with Japanese 3DSes and a Japanese copy of Pokemon X or Pokemon Y, there will be a Coro Coro serial code distribution that will let you get a Charizard with Charizardite X if you have Pokemon Y, or a Charizard with Charizardite Y if you have Pokemon X. More details about that coming soon as well.