The Galaxy A51's successor will arrive in March, according to new reports. The Galaxy A52 will be cheaper than its predecessor too, while the 5G model will remain reasonably-priced, despite its 120 Hz display and powerful SoC.
https://www.notebookcheck.net/Samsung-Galaxy-A52-and-Galaxy-A52-5G-European-prices-leaked-with-a-price-cut-compared-to-the-Galaxy-A51.521502.0.html