lot of people hope to be getting the led out this year. It would be bad marketing/hype building to announce them today. Tickets go on sale next weekend, so if they aren't announced by then, that would probably be it for the zeppelin rumor.
There will be a chance of at least a type of reunion. Maybe not a full blown one though. Lez Zeppelin is playing, and Robert Plant is playing, and Jimmy Page has been to the festival before for jams and such, sooo I wouldn't be surprised if the Lez Zeppelin set had some "special guests".
Strange lineup. What is it with the festivals this year? first Coachella and now Bonnaroo with underwhelming lineups. Hopefully some of the less publicized festivals will take up the slack.