If you had your heart set on catching one of the 35 planned Led Zeppelin reunion concerts ... you are not going to be happy. The Reunion is dead in the water due to Robert Plant.
If I asked you, "What rock star is working on an opera?" Your first response would, no doubt be, "the bass player for Led Zeppelin!" Well, you would be right. John Paul Jones is writing an opera and it's not based on any Led Zep material.