The Redmi K50 series will succeed the Redmi K40 lineup when it's released. A new leak has now dropped a hint of what to expect from the Redmi K50 series performance-wise with the lineup expected to offer phones with both the Snapdragon 898 and Snapdragon 888.
https://www.notebookcheck.net/Redmi-K50-series-tipped-to-feature-both-the-Snapdragon-898-and-Snapdragon-888.555474.0.html