User blog comment:Zeref Fullbuster/Rivals and other characters/@comment-4980287-20150131204320/@comment-1607934-20150131205357

I think that Treecko suits him because it seems that he like green Pokémon so much. It would be great to see him in the anime but sadly it will never happen. Well, there is a trainer with a Treecko who appeared in the newest opening. Maybe he will be another replacement of Wally but it's unknown. I will be very happy if he will be Ash's newest rival because he need to have rivals in every region.