MediaTek has two chipsets in the works—a 4nm Dimensity 9000 and a 5 nm Dimensity 7000. Both chipsets will make their way to upcoming Xiaomi devices, with the Poco F4 GT expected to be equipped with the flagship Dimensity 9000.
https://www.notebookcheck.net/Poco-F4-GT-to-debut-with-a-MediaTek-Dimensity-9000-as-Xiaomi-readies-the-Dimensity-7000-for-the-Redmi-K50-series.580649.0.html