User blog comment:Miskos3/Fairy Tail 514: Dragon Seed, Review/@comment-130.105.140.154-20161212121938

So right now, Eileen being Erza's mother is pretty much confirmed, but....

Next chapter, the year end chapter, is where Eileen's "I am you, and you are me."(title of the next chapter) meaning comes into play, and most, if not all will be revealed of how Erza came to be.

Right now ,there's a gap on Erza's origin between what we saw this chapter and Rosemary Village.