According to reports, Leica will co-engineer Xiaomi's flagship smartphone cameras, starting with the Xiaomi 12 Ultra. Incidentally, a major Chinese retailer listed the Xiaomi 12, which is believed to be arriving in just over a month's time.
https://www.notebookcheck.net/Xiaomi-12-Ultra-to-feature-Leica-tuned-cameras-as-Xiaomi-12-turns-up-at-Chinese-retailer.579319.0.html