User blog comment:I always smile/Theories/@comment-121.54.8.130-20121121135535

1. the drained magical power from edolas to earthland probably triggered Zeref's appearance at Tenrou Island.

2. Mavis is possibly related to Sting, and Zeref is to Rogue. Hmmm, maybe Hair Colors and Eye Colors???

3. All dragon slayers came from 400 years ago. Mavis and Zeref are also from 400 years ago. Fairy Tail was founded 400 years ago?

4. The Spirit World will play some part in the future. Edolas also, and the Exceeds. Fairy Tail Episodes 152 and 153 were introductory chapters for what will happen in the future. Hmmm, the "sense of time" thing.

5. The mystery woman could be related to Natsu and the Other Dragon Slayers. She cried when the Dragon Slayers fought each other at the Grand Magic Games.