Several new Pokémon and forms have been discovered by 3DS hacker Smealum
. These are unconfirmed rumours at this point, but look very likely. Three new Pokémon appear to be event legendary Pokémon:
#719 Diancie - Rock/Fairy type
#720 Volcanion - Fire/Water type
#721 Hoopa - Psychic/Ghost type
There were also possible Latias and Latios Mega Evolutions leaked, as well as Fairy-type Arceus. To avoid further spoilers, images are on the full news post below.