The next LittleBigPlanet title isn't LittleBigPlanet 3, but rather a free-to-play runner entitled Run Sackboy! Run!
Due next month on iOS, Android and Vita, Run Sackboy! Run! allows players to earn exclusive costumes for LittleBigPlanet 3 upon its 19th November release on PS4 and PS3.
Based on the PlayStation Blog's description, it sounds like Run Sackboy! Run! is an autorunning affair in the vein of Rayman Jungle Run. As you go through iconic areas from the series - such as the Gardens, Canyons, and Avalonia - you'll collect bubbles and stickers to unlock costumes in both Run Sackboy! Run! and LBP3.
There will also be leaderboards to compete on as well as power-ups to collect like a jet pack, shield, magnet, and glider. Special costumes will also come with their own score multipliers too.