It'll never happen.
It's been over fifteen years now since their triumphant reunion at the O2 show and they haven't performed together as Led Zeppelin since. Page is 79 now and Plant has largely retired to his estate in the English countryside of Shatterford, having not released any new music since 2017. Following the O2 show in November of '07, Plant had shown no interest in continuing further with Led Zeppelin, much to Page's frustration.
I’m not holding my breath either. What a shame, in a way; in another way, maybe a blessing. Instead of lumbering through periodic reviews of bygone hits like the Stones or the Who, Zeppelin had the sense to call it a day when they lost Bonzo. I like to think that Led Zeppelin went out like James Dean, while their contemporaries are going out like Marlon Brando.
BTW, Robert Plant did have a new release in 2021, “Raise the Roof,” a second collection of covers with Alison Krauss.
“Following the O2 show in November of ‘07, Plant had shown no interest in continuing further with Led Zeppelin, much to Page’s frustration.”
Plant ruined it all. He wanted to his hippie folk music act. Led Zeppelin could have easily put on ten more shows. Just by doing them only in London, New Your, and Las Vegas. They should have. But that’s all over now.