I fear it's extremely unlikely, unfortunately. DTG likes to focus on the same old three countries, and it isn't easy for new third parties to hop onboard TSW.
Given that a route takes several months to make and demand is high in the big three, dtg is unlikely to go beyond the big 3. Once they create more routes in other countries and have the right assets made, then it's going to be a really long time until we get a uk, german, us route and many people would complain their country route is coming too late. 3rd parties are really the only ones who can expand.
Good question how about introducing Denmark with Flensburg Padborg route. To force DTG into expanding into a New country outside of Germany United States and United Kingdom you must use an International route starting from one of those 3 countries therefore Denmark can be introduced with Flensburg Padborg
You cannot force DTG to do that. In order to do that, you'd need a large portion of the community to stop buying UK/US/DE content, which will never happen because people in those three countries can never have enough Electrostars and Dostos.
Thank You for telling me about that how about Fredricia Denmark rensburg in Germany via Padborg Flensburg that offers Dostos to Padborg IC3 Flexliners whole route 185.2 whole route