Rather weirdly for a resident of North Wales, I know Dieter through a musician friend who works with him on his solo work. He is stonking rich has a ranch ,Ojo de Agua, in Argentina with vineyard and has a steakhouse in Buenos Airies and back in Switzerland he is exceptionally eccentric. Boris is now very much into architectural sound tracks and produced a 10 minute epic for the Launch of some Xmas lights in Zurich. Carlos fell out with them and now works alone.
The recent virtual album Touch Yello supporting the virtual show in Berlin was a bit of a virtual let down the world still awaits Yello's first live appearance other than their occasional art installation appearances to select art shows. They do have a studio album in a can but decline to release it.