A byproduct of the creation of a new sub-forum, someone forgot to tick the ‘lord preserve us from all evil’ box.
No. If the route is to be extended, then it should follow the S8 line in the direction of Mönchengladbach. An extension to Düsseldorf main station would be enough.
DTG don't generally do route extensions so the poll is pointless and should have gone in Suggestions, too.
If you are talking about Dortmund in TSW, there is a certain route you have forgotten to mention, not RRO but another German commuter route
