From the blog post:
“Frozen Ever After,” is an adventure fit for the entire family that will take guests through the kingdom of Arendelle. The fantastic Disney storytelling combined with new technology and favorite moments and music from the film will make guests feel like they stepped into the magical world of “Frozen.”
Guests will be transported to the Winter in Summer Celebration where Queen Elsa embraces her magical powers and creates a winter-in-summer day for the entire kingdom. They will also visit Elsa’s Ice Palace and the ice-blue world of the North Mountain along with other locations before returning to the Bay of Arendelle. Of course, favorite “Frozen” characters, including the Snowgies from the animated short “Frozen Fever,” will be part of this new attraction, along with the spectacular sights inspired by the film.
Read more from the official Disney Parks Blog.