Yip I think your right Miggy, the plant ranch will survive!!! ; )
He is going to explain to group 7 about the Akatsuki organization, how it was started and why the things happened the way they did. I also thinks he might be the missing link to the Madara Obito theory, because I think he knows Tobi the best, also I think that Tobi trust Zetzu more than any of the other Akatsuki members.