No worries, Fahrplan is not going away anytime soon. It’s not been getting enough love recently.
If, on the other hand, as is now the case, the kde publictransport libs, and consequently the providers, are available, it will offer us an alternative. Fahrplan is still often using very old public facing apis based on Hafas and EFA many of which are dinosaurs. It’s amazing that the binary Hafas interface used for the Deutsch Bahn is still in use as it has nothing to do with the apis that DB offers today.
As for Silica, I’ll certainly continue to use it where I can. But some things I cannot do because of the age and bugs in our QT. I’m hoping this initiative puts a bit of pressure on Jolla to examine what they can do. Sometimes I just package something that I want to use in a Webview hoping to find the time later to build a native thingy.