https://live.dovetailgames.com/live/train-simulator/articles/article/wondrous-wiesel Is this the first we have heard of it? SIngle line would be a nice change. SD40Australia-Daniel
It runs on the existing Three Country Corner Route. Don't know if DTG will create another route for it.
The route the Wiesel runs on was introduced in August 2015 https://store.steampowered.com/app/325962/Train_Simulator_Three_Country_Corner_Route_AddOn/ Peter