What Edgar said right at the end was that it was Farewell to a period, in other words not farewell to Tangerine Dream and that they would see us again. That is what made it sad for me because, unfortunately, we will not see him again.
I don't think Iris & Linda will be with them in the next concerts, unless they appear just as a tribute to Edgar, because these are the new Quantum years and therefore the music is unlikely to be composed to include drums, sax and flute etc. Hopefully Hoshiko will still be with them though. It would be nice if Linda and Iris could come over to the UK with their own bands though but unfortunately at the moment they only seem to do Germany mostly, at least that is the case with Iris I think.