User blog comment:FairyRaven/Fairy Tail Chapter 328: Zodiac, Review and Commentary/@comment-4933386-20130419125951/@comment-7418318-20130419131703

Not really. When future Lucy changed the present (by making sure present Lucy and company can avoid capture) it didn't change her in any way, so it would seem that the eclipse gate blocks such changes from affecting those that traveled back in time.