Mike from Mii-gamer:
Like in Brawl, Sakurai will be providing daily updates on the development progress of Super Smash Bros for Wii U/3DS through Miiverse.
Today's update is a screenshot of the Wii U version. We can confirm that the Nintendog's assist trophy will make a return. The annoying assist trophy will block your view of the battlefield. The breed is a French Bulldog.