I'd like to see more season-dependant controls, such as mist / fog as well as being able to change the seasons as well. I feel that using the presets to change the settings to be an inadiquate way of achieving your desired settings due to the fact that setting presets removes the settings you already have.
I think a mist/fog setting would be a welcome option to have in TSW because I really missed it today. As we are now in the season of early morning fog in the countryside with clear skies above, I wanted to replicate this in my sim but it wasn't possible. Maybe DTG can create a visibility slider in 1000m increments up to 9000m then 10km or more? Would it even be possible to create fog patches along a route and not universal fog for an entire route?