Nintendo just announced the Super Mario Maker Stage is coming to Super Smash Bros. for Wii U and 3DS. On September 30th, gamers will be able to play differently every time they choose the stage. The layout will not be the same each time the stage is selected, and will have a “hand” creating a stage and fixing any broken blocks. The new stage which will be available on September 30th.
[Source]: @Nintendo (YouTube).