It would have to be rebuilt from scratch, but that shouldn't be much of an issue. Would be nice to have a now long-lost line in TSW, a nice break from all the modern stuff.
Day One purchase provided that it comes with the Class 76 and 77, all passenger services and the Class 506 as a post launch dlc. Wath Depot needs inclusion, which would be the perfect excuse to give us the Blue Pullman diesel sets as the Midland examples were based there and could be layered onto Peak Forest.
Would love to see the Woodhead Line be made for TSW as long as it includes the BR Class 76 and/or 77 & the BR Class 506. The GT3 could be a possible loco DLC as well
It needs to be set in the 50s or 60s whilst the 1500v dc network was at its peak mileage before passenger services ceased and the route was wound down.