The Galaxy A72 has leaked in full, following the outing of the Galaxy A52 4G and Galaxy A52 5G earlier this week. The successor to the Galaxy A71 will have a 90 Hz display, a Snapdragon 720G SoC and a 5,000 mAh battery, among other features.
https://www.notebookcheck.net/Samsung-Galaxy-A72-Official-renders-specifications-and-European-pricing-leaked-for-4G-only-mid-range-smartphone.520127.0.html
The only reason I can see is Samsung is planning to A72 5G with a different chip which is a good thing