The ability to chose weather cars are loaded or unloaded in the Formation Designer 2 bay Covered hoppers and the steel coil cars returning back to TSW 5. (Remodeled to be compatible with TSW 5) as well as the Trash Carrier cars from TSW 2020 (also under a brand new model) would be nice for some more variety on Manifests on all routes. 2 bay covered hoppers would make for a great addition in quite a few. They are also very common on all freight railroads that are featured in TSW 5. Trash Carriers and Steel coil cars Steel coil for the CN Oakville Subdivision because the route has steel mill on the industrial branch Trash carriers are more of a variety addition but I believe NEC Boston would be a good fit for them. GP40-2s. GP40-2s would be nice but I don't see this happening
Rolling stock dlc will not be free. They still have to spend numerous hours creating the models, trains, integration into timetable, testing, etc. Dtg and partners are a business at the end of the day.