Possible and a full run from one terminus to another would be great. The development time needed would make this an unlikely release, for now anyway. The PC will get the route builder and no doubt have 3rd parties working on routes like this straight away. As for console, I hope DTG can come to an arrangement with Sony snd Microsoft to get 3rd party builds in the game.
TrainSim-Dmitri Id keep an eye on the UK guys that request modern traction or anything UK related as it seems to be causing a stir on here I find. I find when you put certain people behind a keyboard, they get this extra power to talk down to others. It's not on, I had to call out a couple today, we're here for the future of Train Simulation not if you're the best at what you do.