I found this concept art of Kylo Ren and Supreme Leader Snoke’s appearance in The Last Jedi. Based on this picture, it is clear that Supreme Leader Snoke likes to dress in more rich and regal garb compared to Emperor Palpatine such as red and gold robes and a ring that may have a black kyber crystal. Kylo Ren’s new look makes him look more like his grandfather, Darth Vader. He is wearing a full cape instead of his short tattered cloak. I look forward to seeing these two lords of darkness in all their sinister glory when The Last Jedi comes out.