So much is being reveled about this game. First off it won't be the normal platformer that it's predecessors were. The game will instead focus on more user created game play. It seems Banjo will be abandoning his learned moves, and instead use tools to get the job done. As the name suggests, the idea of creating and building your own items to find your way through the game is a reoccurring theme. Although this game is going in a different direction it hasn't completely abandoned it's platformer roots. Jiggies will play an important role once again, but new will be game globes, that once activated, will serve as new levels to play in.
The game will have multiplayer options where you can race cars you build in game over XBL. You bring all the parts you find in the game to Mumbo's Motors. At Mumbo's workshop you will assemble the parts you find throughout the game and put together things like the cars you will race over live.
Via IGN.com