A new leak backs Huawei to get a Mate 50 series of premium phablets on the market in 2022 - however, they are also now not slated to materialize for a couple of months. This delay may enable the OEM to release the devices alongside a new way to get around the current restrictions that might keep their processors 4G/LTE-only.
https://www.notebookcheck.net/The-Huawei-Mate-50-series-will-launch-in-mid-2022-with-a-new-5G-enabling-accessory.615871.0.html