It would be nice for TSW2 User Created Scenarios and Liveries to be conveniently shared on Steam Workshop so we can easily enjoy and use what other players have created.
Honestly I'm surprised they didn't include this feature from the beginning as it seems a lot of people want this, and I think they should have been anticipated that.
Livery Designer won't happen for legal/licencing reasons. Which I get. Sharing Scenarios would be great on workshop like in TS, but I guess they want the same system for all platforms, PC and consoles. So, probably not. Maybe they figure something out that works ingame over dovetail live. But, it's not on the roadmap.
