ORLANDO, Fla. — Guardians of the Galaxy: Cosmic Rewind, Disney World’s highly-anticipated indoor roller coaster, is in the “final stages” of construction at Epcot, according to Walt Disney Imagineer Zach Riddley.

“We are deep in the final stages of preparing our first Other World Showcase pavilion at EPCOT with our Guardians of the Galaxy: Cosmic Rewind attraction,” Riddley said in an Instagram post on Wednesday.

Described as a storytelling coaster, the attraction will feature ride vehicles that rotate 360 degrees, turning riders toward the action along the way. Disney shared test footage of the ride vehicles in motion last year.

The coaster will also have the first reverse launch on a Disney coaster.

In an official description of the coaster, Disney says the adventure will start in a planetarium-like exhibit called Galaxarium, where the “similarities and mysteries of the formation of Earth’s galaxy and Xandar” will be explored.

“Guests will be invited to learn more about the treasures Xandar has to share — until the Guardians of the Galaxy arrive, and adventures across the cosmos ensue,” reads the description.

At this point, Disney hasn’t announced an official opening date for Guardians of the Galaxy: Cosmic Rewind. Previously, the attraction was set to debut in time for Disney World’s 50th anniversary celebration, which kicks off Oct. 1.

The 18-month-long celebration will include new nighttime shows at Magic Kingdom and Epcot, a new daytime show at Disney's Animal Kingdom, and the opening of Remy’s Ratatouille Adventure at the France pavilion.