User blog comment:FairyRaven/Fairy Tail Chapter 337: The Golden Plains, Review and Commentary/@comment-60.53.102.237-20130703114213/@comment-1359322-20130704113242

From what Future Lucy said the destruction of the Eclipse gate will make the 2 or more futures being bound to one, meaning only one future remains.

Since Future Lucy's future won't happen due to the Eclipse Gate being gone and the Dragons never appeared in the timeline, Future Lucy's timeline was removed from existence. Future Rogue's future, however, remained because it will occur because of Acnologia. In Future Rogue's future the gates were never opened and the Dragons never appeared as well and now that the Dragons can no longer appear that leaves us with the Acnologia future.