After made the Luzern-Sursee line, it opens mor options for new locations, and I'm think it will a great idea to make the Brunig line from Luzern to Interlaken Ost via Meiringen, and the Luzern-Engelberg line, with the ZentralBahn's plenty of rolling stocks, because they're beautiful line's and it takes new challenges for example with the cogwheel segments between Luzern and Meiringen and between Luzern and Engelberg. And after it made in the Luzern-Sursee line in Luzern the AI traffic will can better, for example no more Flirt units in the meter gouge tracks.
I don’t think you would get the Brunig line as I believe that is SBB and due to licensing and concerns over train security they are no longer allowing DTG to make content based on their routes and operations.
