ZTE's sub-brand nubia just announced its latest flagship. As is the theme these days it's not an entirely new phone, but rather a version of its existing top-dog with support for next-gen networks.
The Nubia X 5G is based on the nubia X, but replacesits Snapdragon 845 with the 855 and a X50 modem.
There doesn't seem to be any other specs changes, although we didn't get the full list so minor changes in battery capacity and/or thickness shouldn't be ruled out.
ZTE hasn't specified when it will launch the nubia X 5G but we know it will premiere in China.