I spent a few hundred quid on Rail Driver on the promise it would be implemented in TSW2 but I am still waiting for the GWE (my reason for buying TSW2 in the first place) route to be incorporated with DTG saying it was an 'easy' thing to do. It is said that RH will bring more preserved routes compatible with RD but not all. I bet GWE is one of them. With VR I think a third party would have to do coding for it so it will have to pay for itself somehow. I'm sure if DTG deemed it viable it would go ahead.