User blog comment:IamJakuhoRaikoben/Chapter 254: Year 791- Fairy Tail, Review./@comment-76.185.52.19-20111010215859/@comment-70.99.75.42-20111011220955

It seems possible but they would have to find a completely new celestial mage, since the only ones revealed besides Lucy are either arrested (Duke, Angel) or have died (Layla, Karen).