Some intriguing rumors of an accessory that would allow Huawei P50-series owners to circumvent the device's limitations to 4G/LTE-only connectivity have been somewhat vindicated through the launch of the first case along these lines. The new third-party product comes in just 1 color and finish, yet is indeed touted to come with the tech necessary to confer 5G on the Huawei flagships.
https://www.notebookcheck.net/Huawei-P50-Pro-compatible-5G-case-is-now-officially-a-thing-rated-to-add-eSIM-powered-functions-to-the-smartphone-for-about-US-120.620328.0.html