Big LittleBigPlanet announcement due today

From tiny minds come big ideas, but what could Sackboy's creators have for us? A post on their Twitter yesterday suggests something newsworthy is being announced. Could the Karting game be coming to the Vita? Could LBP3 for PlayStation 4 and Vita be teased ahead of Gamescom? Who knows but keep checking the skies, or better yet the PSN blog, for more information.