Three previously unknown Pokemon from Pokemon X and Pokemon Y have been leaked via several unofficially released screenshots today. Introducing Volcanion, a Fire/Water-type, Diancie, a Fairy/Rock-type and Hoopa, a Ghost/Psychic-type. The three legendaries were found by Poke-hackers and are assumed to be reserved for events, but of course that's just a guess.
If I had anymore information to share, I would! What a weird world we live in these days where we can hack Pokemon games and discover unreleased content. What an odd future we live in. Hell, maybe these charaters are intended to be unlocked via PC?
Pokemon X and Pokemon Y have been out for some time now, exclusively on the Nintendo 3DS. Odds are if you're interested in the games, you should check out our Neoseeker Pokemon community, which happens to be one of the largest forums online for the games.