Though no sequel has been announced as of the writing of this article, The Super Mario Bros. Movie did so well at the box office that a second movie is almost a guarantee at this point. Both Nintendo and Illumination would stand to make a lot of money from a sequel if the success of the first film is any indication, and so it seems likely that they would take advantage of that opportunity. The world of Mario is so expansive after so many years of the franchise existing that it wouldn't be hard to pull inspiration from one of the many games for a brand-new story.