Shaymin's Sky Forme accidentally posted to Festa site
The official Web site for Pokémon Festa, Japan's annual Pokémon convention, accidentally posted an image of what appears to be Shaymin's Sky Forme before removing it from the site, according to All About Pokemon Figure (AAPF).
The Pokémon in question is to the left of Pikachu on the cup. It is white with a green head crest and legs, and what appear to be red wings come off its back.
AAPF also reported that the formal name of Shaymin's previously-known appearance, Land Forme, is now being used officially and semi-openly by The Pokémon Company in its merchandising.