Construction began on August 13, 2017, and it will be open in May 1, 2019, as part of the park 30th anniversary celebration.
The ride was announced at the 2017 D23 Expo in Anaheim, California, and will feature "2 1/2 D" technology (no glasses required). Disney Imagineer Kevin Rafferty stated: "This is one of the boldest…most impossible things I’ve ever worked on in almost 40 years of being an Imagineer. And you know what? That’s what I love about it. Well, that, and Mickey," [...] “This is not going to be a small attraction, it’s going to be game-changing.”
Furthermore, the Disney Television Animation team responsible for the recent, Paul Rudish helmed Mickey Mouse shorts are collaborating with the Disney theme park division and its Imagineers to bring the attraction to life.
On Mickey and Minnie’s Runaway Railway, you’ll step through the movie screen and join Mickey and his friends like never before. The attraction will put you inside the wacky and unpredictable world of a Mickey Mouse Cartoon Short where you’re the star and anything can happen. This zany out-of-control adventure features surprising twists and turns, dazzling visual effects and mind-boggling transformations that happen before your very eyes.