Xiaomi could be working on a possible new flagship as was indicated by a recent Chinese 3C certification. The Xiaomi device, which has a model number M2007J1SC, was later discovered to be codenamed Cas and will be a 5G device with 120 W fast charging support. Xiaomi Cas is expected to be powered by the Snapdragon 865/865 Plus and will also sport a 48 MP triple-camera setup that can take "supermoon" shots similar to the Huawei P30 Pro.
https://www.notebookcheck.net/Xiaomi-Cas-is-an-upcoming-smartphone-that-aims-for-the-moon-Snapdragon-865-Plus-48-MP-camera-and-120-W-fast-charging-in-tow.481443.0.html