User blog comment:CNBA3/Fairy Tail Movie 2 Ideas!/@comment-82.20.156.238-20131018002150

What happens to Future Rogue when he returns to his original timeline with Acnologia waiting for him - could make for some sad epic melodrama and define Rogue's actions even further.

Or, what Mystogan is up to in Edolas, how he's running things, what the other Fairy Tail members are doing and the general Edolasians rebuilding their world and surviving without magic.

Or, everything that happened during the timeskip.

Or, everything that happened before the story began... ie. characters' pasts/history, the beginning of Fairy Tail, the beginning and end of both Zeref and Acnologia, everything before them and the magic.