TS 2021 has some nice routes and with additional routes from Rivet Games, you'll soon be able to drive out of both Edinburgh and Glasgow. What are the chances of these routes coming to TSW?
You won't see direct ports from TS to TSW, but obviously some DLCs will cover the same content in both games, like the Class 33, 52- I could go on, but you get what I mean. GWE and RSN are both remakes of original Rail Simulator/Train Simulator routes, so inevitably there will be more DLCs that follow the same routes as ones in TS.
Aren't all routes on the roadmap right now in TS already, plus the München and Isle of Wight routes as well?