It seems Xiaomi is planning far in advance in regard to two of its most important products: the Mi Mix line and MIUI software. Both the Xiaomi Mi Mix 10 and MIUI 15 have been "teased" in images showing people taking part in a Xiaomi security and privacy awareness event. The mention of the Mi Mix 10 and MIUI 15 at least answer one burning question.
https://www.notebookcheck.net/Xiaomi-planning-ahead-with-the-Mi-Mix-10-and-MIUI-15.476796.0.html