User blog comment:IamJakuhoRaikoben/Chapter 364: Tartarus Arc, Part 1: Sins and Sinners, Review./@comment-7397924-20131220140411/@comment-7418318-20131220142951

The former OS members might be willing to take that job (and it would probably just be a job for them, not a calling like in CS's case) if it means being pardoned for their past crimes and getting payed well.... except for Hoteye of course, with his new personality he wouldn't care for the money and would either agree in the name of love or disagree because there is no love in fighting.

But at the moment I just don't see Jellal and Meredy do such a thing, since they are too deep down their guilt trip. If they managed to fix their depressing states of mind, maybe, but not as they are now.