It seems Drake Hogestyn (John) was well aware he was terminal, thus gave his o.k. to it all. I am glad the cast was able to do it before Drake passed away, and am also glad the show did not try to keep John alive by sending him off to Europe, or Africa, and just decide to "stay" there.
It will be hard to watch, I know, especially for viewers who have lost loved one, whether recently or in the past. John has been such a fixture, such a hero, such an integral part of Days for so long, it seems impossible we won't be seeing him much longer. May he rest in peace.