...it does, any contribution from Led Zeppelin would certainly be a plus for Band's Legacy and certainly strengthens ties with musicians regardless of their differences...
I like the idea BuckE...presented, availability of Clapton/Winwod, it would be great for any Led Zep contribution..... :D
addendum - There are no "Benefits" here, obviously, there is no harm either...I think given the projects Jimmy chosen to involve himself so far, socially speaking, ...the fans will love to see him in this "Big Project" - Great benefit to Zep Legacy and immense honor for Page