User blog comment:FairyRaven/Fairy Tail Chapter 423: Do It All for Love, Review and Commentary/@comment-4164634-20150309163830

Well, I have a good theory about what will happen after Juvia joins up. When Juvia joins up, she might have a good idea where Gray is (probably somewhere cold) she also might know where Gajeel and Lily is since her and Gajeel are long time friends. And once we find Gajeel, he might have a good idea where Levy is. Once Levy joins, she might know where Jet and Droy are. So basically, it's going to be a win-win situation.