It seems as though Amazon has beaten Nintendo to the punch as its revealed that Super Smash Bros Wii U will feature a Game Board mode and Stage Builder mode. The information was listed on the product description and was presumably supposed to be announced by the Kyoto based company first. Here’s the description.
“The multiplayer showdown you know and love is now on the Wii U console! Take on all comers as Mario, Mega Man, Sonic, and more gaming greats. Or tap an amiibo to the Wii U GamePad controller to train it up by battling with or against it. You can even pit your amiibo against a friends’ to see how your training methods stack up. Whether you’re creating stages on the GamePad, competing in challenges crafted by Master Hand and Crazy Hand, or outwitting your opponents in a brand new board game mode, there’s no doubt that the ultimate Smash Bros. game has arrived.”