User blog comment:FairyRaven/Fairy Tail Chapter 421: Wendy and Chelia, Review and Commentary/@comment-4449950-20150224044643/@comment-7418318-20150225092624

I wouldn't be surprised if Erza had returned to Rosemary village for a visit, though I don't think she'd stay there.

I think a flashback to this visit would make a nice chapter though. Maybe she could even go there together with Kagura, since she too came from there.