User blog comment:FairyRaven/Fairy Tail Chapter 302: The Eclipse Plan, Review and Commentary/@comment-5201441-20121004132839

Sooo... It seems that Layla and the dragons are related... Layla sent the dragons to another era. I'm starting to think in time travel logic.

Natsu and the others went back in time and met Zeref, but he wasn't strong enough to defeat him. The dragons, knowing the older Natsu and gang from befere, were just expecting them.

Maybe not doing the Eclipse plan is what will change history, as in this timeline, they already did it and failed.

Layla sent the dragons back 400 years to support Natsu and crew.

What do you guys think?