I think if Turkish railways, lines and locomotives (e.g. DE24000, DE22000) were added to the Train Sim World 5, the interest of Turkish players would increase and a new market for dovetail games would be created.
This would at best come from a 3rd party developer, and the mostly likely candidate for that would be AND Model, who made the Taurus Mountain route on Train Simulator Classic a few years ago.
I believe the authors of Taurus Mountains did express an interest in developing for TSW when they released their (excellent) TSC route. But it remains to be seen if this happens and, of course, how such a route might fit into the tougher commercial vetting (LAMPOIL) DTG presumably submit even third party TSW products to.
I have a DE24000 Blender model that I made with my own effort, which took up most of my time, but I had to leave it unfinished. Maybe if I can find someone to collaborate with or help me, I might consider restarting the project. However, even if I do, I don't know how to integrate it into the game and make it functional.