User blog comment:IamJakuhoRaikoben/Chapter 452: The Prelude to the Final Battle, Review./@comment-1153699-20150915213648/@comment-3290324-20150916040000

I don't think Laxus will be facing off against August. There was no hint of it like there was with the other battles. My personal guess is Gildarts vs. August. Although, if Mashima really is recycling RAVE battles like all the RAVE readers say, then August will be facing off with either Jellal or Lucy (apparently Ellie in Rave unlocked some super duper Magical ability and defeated the "August" of the Rave series). :P