Xiaomi has now officially announced its partnership with German camera giants, Leica, on an upcoming smartphone. While the smartphone isn't named, it's almost definitely the Xiaomi 12 Ultra and has now also been confirmed to debut in July.
https://www.notebookcheck.net/Xiaomi-12-Ultra-Leica-camera-partnership-and-July-launch-announced-for-Xiaomi-s-upcoming-flagship.621538.0.html