Trademark registered by GameFreak, judging by the name probably the Sun and Moon Mascots. I have a feeling this is leading up to them being officially revealed soon enough, probably even before CoroCoro next month---Zekrom and Reshiram for instance were revealed through the official website back in the lead up to Black and White.We've had various Pokemon leaked through trademarks before, such as before XY were released quite a few including the evolutions of the starters.