Can it ever be Zeppelin without Robbie?

NO! I hate when bands do this. Robert Plant is not replaceable. By anyone. I didn't like the idea without Bonham either, but I'm a musician. Many musicians are just as irreplaceable as singers to me. Someone can come in and mimic their style/sound though. It's not the same, but can be done. Understandable if they are dead. But the singer, nah. Especially not someone of Plant's caliber. A few shows in a tribute style, fine. It's like Queen playing with the dude from Bad Company instead of the amazing voice of Fred Mercury. Not knocking his voice, but c'mon! If it was Page and JPJ playing Led Zeppelin songs under their name or something other than Led Zeppelin I get that. People might want to see 2 greats playing their songs. But they shouldn't tour under the name, and in no way ever record under it without Plant on board. It shows that the music isn't the priority. Or the fans.