Wario Ware Gold wouldn't have worked on Switch. It uses a lot of 3DS features like the microphone and two screens.
I know, but I'd have taken a collection of the older simple Wario Ware games that just require a single button press or limited movements like we enjoyed on the DS or Gamecube.
But like Ridley327 pointed out, there could be a lot of great ways to use the joycons in a Wario Ware game so maybe it's best to wait and see if they gives us a Switch title one day.