Some more evidence of the Galaxy A series from Samsung persevering into next year has come to light. It comes in the form of a certification that mentions what may be partial model numbers for the A71 and A51. This Indian registration is not for the phones themselves, however, but for their batteries.
https://www.notebookcheck.net/The-Samsung-Galaxy-A71-and-A51-inch-towards-release-with-new-certification.438645.0.html