Samsung is now rumored to have a new version of its existing Galaxy A70 in the works. This phone (which currently goes by the model name SM-A707F) appears to be extremely similar to its predecessor in terms of specs. Now, a new regulatory document includes the same model number, lending much more weight to the "Galaxy A70s" theory.
https://www.notebookcheck.net/Samsung-Galaxy-A70s-becomes-all-but-official-with-Wi-Fi-Alliance-certification.432989.0.html