User blog comment:FairyRaven/Fairy Tail Chapter 427: Pitched Underground Battle, Review and Commentary/@comment-26239138-20150406112050/@comment-26167397-20150406115329

I think either Lucy will fight the rest of the Avatars before Gajeel and Lily show up, or will fight the rest of the avatars and Gajeel will team up with Natsu to fight Gray and Lily will help Lucy, or fight only Briar and Mary while Gajeel take on Arlock and Lily Jerome. I don't think Wendy and Juvia will be showing up. Juvia's still sick and it takes time after healing magic for her to recover like when Lucy was sick back then. And they have no idea where they are right now but only know that they're going to Sabertooth.