NightJet trains from Zurich to Barcelona and Rome were indeed planned to run from 2024, but this will probably be delayed because the Swiss Federal Railways won

NightJet trains from Zurich to Barcelona and Rome were indeed planned to run from 2024, but this will probably be delayed because the Swiss Federal Railways won't receive subsidies they were expecting: https://www.srf.ch/news/wirtschaft/ausbau-des-nachtzug-netzes-sbb-nachtzuege-nach-rom-und-barcelona-lassen-auf-sich-warten https://www.srf.ch/news/wirtschaft/ausbau-des-nachtzug-netze... (article in German)