User blog comment:Derax-Pagani/Chapter 507: Voice/@comment-26389992-20161025001952/@comment-7418318-20161025053958

Opening the path for the person/people who'll deal with Zeref himself qualifies well enough for me, even if they end up unable to be "in for the kill".

Besides it was only Jellal, Ultear and Meredy's goal. While they too seem to seek redemption, we never learned in which way the former OS members seek to redeem themselves. Especially McBeth, who we've never seen showing any remorse over his past actions. He could just be along for the ride because he couldn't think of anything more entertaining to do for all we know.