Samsung has been rumored to have a Galaxy A21s ready for release this year. A new leak confirms this, referring to the phone by its name for the first time. Interestingly, the new device is now associated with 5 slightly different model numbers, suggesting that it will be available in multiple regions.
https://www.notebookcheck.net/The-Samsung-Galaxy-A21s-is-cleared-for-launch-by-the-Bluetooth-SIG-may-be-destined-for-several-new-markets.463458.0.html