The official GameFreak website has posted a strange picture of a silhouette with a caption noting that "the well known game, played all around the world, is about to be reborn thanks to a surprising collaboration". Now, this is not known to be regarding Pokémon so don't take this as one at this time, but it's a bit mysterious wording for GameFreak
http://www.gamefreak.co.jp/g2013/index.html
http://www.gamefreak.co.jp/g2013/index.html