A new report indicates that Xiaomi could be prepping a special edition of the Redmi K50 for release. Hardware details are unclear but the phone looks set to bear the "Super Cup" suffix, which could translate into a phone branded as the Redmi K50 Ultra.
https://www.notebookcheck.net/A-potential-Xiaomi-Redmi-K50-Ultra-may-be-on-the-way.596912.0.html