User blog comment:Dispelling Mage/Chapter: In the Moment of Silence (474) - Review/@comment-86.70.179.158-20160227114033/@comment-25395791-20160227161440

That sounds unlikely to me. The reason we had a timeskip in the first place after Tenrou Island arc is because all the prominent characters were inside Fairy Sphere after Acnologia tried to obliterate the island. After Tartaros arc, yeah, Acno did appear, but I think that the purpose was to show how all the characters improved/developed their Magic during the timeskip itself. And finally, we have Acnologia appear in the latest arc, and, looking how this goes, this may just be the final battle between FT, Zeref and Acno.

My point would be that this all could just be a coincidence to begin, thus making it hard to make a logical conclusion already. :P