Speaking with Entertainment Weekly, director Rian Johnson revealed a few details about this world, named Crait. “It’s way out there. It’s uncharted,” he said. “It’s a mineral planet and so there are mines on it.”
The filmmaker was also keen to highlight Crait's “beautiful design elements,” although whether he's referring to the trailer sequence of the speeders kicking up clouds of red dust is as yet unclear.
Perhaps most crucially of all, Johnson stated there is “an old Rebel base [on Crait] that’s now abandoned,” and that “it ends up playing a key role in the movie.” Exactly what that role might be remains to be seen.
Arriving December 15, “Star Wars: The Last Jedi,” features returning cast members Mark Hamill as Luke Skywalker, Carrie Fisher as General Leia Organa, Adam Driver as Kylo Ren, Daisy Ridley as Rey, John Boyega as Finn, Oscar Isaac as Poe Dameron, Lupita Nyong’o as Maz Kanata, Domhnall Gleeson as General Hux, Anthony Daniels as C-3P0, Gwendoline Christie as Captain Phasma and Andy Serkis as Supreme Leader Snoke, joined by franchise newcomers Kelly Marie Tran as Rose, and Benicio del Toro and Laura Dern in undisclosed roles.