Samsung is already working on One UI 4.1, it will be released along with the Galaxy S22

Samsung introduced One UI 4.0 a couple of months ago, and is now working on a new version of it.

What is known

The new interface will be released under the title One UI 4.1. According to the forum moderator Samsung Members, it will be presented alongside the flagship Galaxy S22 line of smartphones. That is at the beginning of February... 

Naturally Korean manufacturer also plans to update current models to a new shell. Smartphones Galaxy S21, Galaxy S21 +, Galaxy S21 Ultra, Galaxy Note 20 and Galaxy Note 20 Ultra will definitely receive it. 

Unfortunately, what will be added to the system is still unknown. Like One UI 4.0, it will be based on the fresh version of Android OS 12.

A source: TizenHelp