I’m sorry I couldn’t find an English thread for this new, I’ll eventually update it if I find an English thread.

Pavel Djundik, developper and creator of SteamDB has posted a picture of an official presentation of what he witnessed the last January.
The picture is a new interface of “Rainbow Six : Siege” game page.
Steam will propose to users to “Play” or “Watch” a game, thinking about integration for streaming services.

The redesign is also focused on :
Rich presentation of contents
Screenshots, Artworks and guides
Success, badges and items
activity of your friends and streamers
Official events, updates and actualities.

https://pic.clubic.com/v1/images/1692636/raw?width=634&fit=max&hash=026272ce54bb12b3b82d1ca8eec5f32fc78ad74f