According to a interview made for the magazine Uncut, Robert Plant has said that although there is no certainty that Led Zeppelin go on a world tour, yes there are chances to do sporadic presentations.
In the report with the May issue of the magazine, Plant, speaking about the future possibilities of the band, said that «we will do it some day, I hope so«. While bassist John Paul Jones added that “We discussed it with Jimmy Page and we both want to do it«.
The truth is that Plant had stated that until September, when she finished her current engagements with Alison Krauss, she wasn't going to be able to focus on doing something with the Zep.