The Samsung Galaxy M20 started at about US$200 for 3-4GB of RAM, a FHD+ screen and dual 13+5MP cameras: all in all, a good deal on its launch. Therefore, it wouldn't be a huge surprise for an M21 to be released this year. A new device that has just surfaced on Geekbench 5 may confirm this theory.
It is known as the "samsung SM-M215F" on this benchmarking site, whereas the Galaxy M20's model number is SM-M205F. Its results may show that the A21 has 4GB of RAM and runs Android 10. It would be plausible for a new Samsung phone to have One UI 2.0 (or 2.1, possibly), which is based on this OS, out of the box.
In addition, should this really be the M21, it will be powered by the Exynos 9611. This silicon also powers the new, well-received Galaxy A51. All in all, this possible 2020 Galaxy M-series device may be a worthwhile prospect for fans of cost-effective new phones.