Another picture from this months Corocoro has been leaked. The picture shows box-art for the upcoming game, Pokémon Mystery Dungeon: Explorers of the Sky. The picture also shows it will be released in Japan on April 18th, 2009 and will cost 4800yen.
Pokémon Mystery Dungeon: Explorers of the Sky is the third game in the Pokémon Mystery Dungeon series. Chunsoft is currently finishing development on the game.