We knew Samsung was working on a 5G variant of its current flagship tablet, the Galaxy Tab S6 but we didn't know when it was coming. Samsung has now cleared things up at least a little by announcing it will hit the market in Q1 2020.
https://www.notebookcheck.net/The-first-5G-tablet-to-hit-market-is-coming-from-Samsung-in-Q1-2020.449037.0.html