The tech blog MySmartPrice claims to have been sent exclusive renders of a new Galaxy Tab A-series slate. It is purported to be the next generation of it 8.4-inch variant, and to be slimmer and more portable compared to its predecessor. Otherwise, it seems to be largely unchanged, down to its 3.5mm jack.
https://www.notebookcheck.net/The-Samsung-Galaxy-Tab-A-8-4-2021-is-on-the-way-according-to-a-new-leak.516851.0.html
You need to think twice before buying a Tab A! My 8.4 2020 was released with Andoird 9, updated once in October, then again at the end of Jan 2021 - but only to Android 10! Updates are infrequent and way behind. Apparently, the Tab A's are 2nd class citizens, and I'd think twice before buying one again.
I hope they solved the overheating problem that made former version of Tab A shutting down apps if ambient temperature goes over 84+ F or being a while on direct sunlight.
John Frieda on is right, I have a Tab A from about 5 years ago, I have yet to see a firmware upgrade.