As a North Carolina resident, residing in the city of Raleigh, I've been around the Piedmont trains a lot. Quite a few years. And was wanting to ask DTG if they can make the NCDOT Piedmont locomotives as an addition to the N-Line route, considering it runs through North Carolina, but not exactly through Raleigh, but still has passenger stations along the route. Perhaps DTG could take it on?
My suggestion would to be to put in a request for the Piedmont route itself in the Route Suggestions & Proposals section with detailed info, that way there is a chance your suggestion could become a route. Good luck.
A Charlotte - Raleigh route would be a magnificent addition to the game. However, I do think it should be based on the Norfolk Southern Piedmont Division considering NS has a yard right outside of downtown and trains run through downtown as well as passenger trains.