Snoke’s home planet has reportedly been revealed in a rocky, snow laden behind-the-scenes image from Star Wars: The Last Jedi that shows an IMAX camera at work.
“Today’s Star Wars: The Last Jedi news goes into some new Star Wars the Last Jedi spoilers that have to do with Supreme Leader Snoke.
Snoke’s Supremacy will take off from this planet for this Star Wars the Last Jedi scene!”
In fact Snoke’s planet will only be used as a way of showing the audience Snoke’s Supremacy taking off.”
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Snoke's Planet Leaked! - Star Wars The Last Jedi SPOILERS