Kylo Ren and Throne Room is one of three sets from The Last Jedi that include Environmental features and that are spread between different retailers in the US
The Kylo Ren figure is exclusive to Walmart and comes with a diorama piece which we assume is from Snoke's Throneroom - and therefore may line up well to the Snoke and Throne release over at Gamestop. The packaging goes back to the hinged door type packaging we saw in 2016 in the Obi-Wan Kenobi and Kylo Ren exclusive sets.
With this being a Walmart release it could translate over to Asda stores in the UK
STAR WARS: THE BLACK SERIES 6-INCH KYLO REN in Throne Room (Ages 4 years & up/Approx. Suggested Retail Price: $34.99/Available: Fall 2017) Imagine commanding First Order missions from the Throne Room with THE BLACK SERIES KYLO REN figure! This 6-inch scale figure is carefully detailed to look like the dark warrior from STAR WARS: THE LAST JEDI featuring impressive detail, multiple points of articulation, and premium fabric costuming. Comes with a Throne Room base inspired by one of the locations in the film, allowing collectors to easily recreate their favorite STAR WARS moments. Includes figure, stand, and four accessories. Available exclusively at Walmart.