Samsung has posted a notice on its Korean website announcing that its One UI 2 beta built on Android 10 is coming soon. The One UI 2 beta has been available for the Galaxy S10 range since the middle of October but only in select markets.
https://www.notebookcheck.net/Samsung-One-UI-2-beta-with-Android-10-coming-soon-for-Galaxy-Note-10-users.440059.0.html