Finally, I have managed to update the long-distance train map of Switzerland 2022. There have only been a few changes compared to the previous map. In december 2022, the IC lines from Basel and Romanshorn to Interlaken and Brig (IC 6, IC 8 and IC 61) have been reorganised. A new line IC 81 has been introduced. The IC trains from Zurich to Schaffhausen, Singen and Stuttgart are labelled without a number instead of IC 4. In addition, some lines in narrow-gauge network in the Grisons have been reorgnised. In the canton of Valais, some lines were upgraded to RE services, even though they stop at almost every station.
Please also note the post about the Evolution of the Swiss Long-Distance Traffic since 1982.
lars' transport maps 