While keep working on ETS2/ATS I'm also going to start working on other projects for other games. I'm planning to make mods/plugins for similar genre games so same people can enjoy similar games with improvements by using single subscription.
List of games I want to try
BeamNG - Anti Aliasing, Lighting/Color Improvements
OMSI 2 - Performance, Graphic Improvements
Assetto Corsa - Graphic Improvements
iRacing - Anti Aliasing, Graphic Improvements (performance is important for iRacing so I'm not sure about graphic improvements)
Farming Simulator 25 - Graphic Improvements
Special
BeamNG - I was working on my game last year and I was focused on creating 1:1 scale real maps from minimal data at runtime. It is a lot of work to make a game with a lot of different vehicles, proper physics etc. I like the way BeamNG handles physics etc. So I want to try implementing my dynamic map generation system with custom graphics on BeamNG to have 1:1 scale real maps in the game and make good simulation games inside BeamNG.
Of course, these are just what I'm thinking about. There is no guarantee, sometimes people become lazy but I will try my best.