According to reports, Xiaomi is working towards releasing a revised Mi Mix Fold. The refreshed Mix Fold is expected to contain a few improvements compared to the original model, albeit not enough for it to be considered a next-generation Xiaomi foldable smartphone.
https://www.notebookcheck.net/Xiaomi-tipped-to-release-a-Mix-Fold-refresh-with-three-notable-changes.569930.0.html