>>43373154There are 2 possible instances i can think of:
>1When Ash travels to Kalos and he gets to battle the strongest Trainer in that region. Or,
>2Ash will use him as his ultimate trump card during his actual final matches.
Either one of these possibilities would obviously imply he returns as a way to build hype near the end of the series, which is a long time from now. Though if what the anons say about Gen 6 in GO late in the year, along with all that merchandise Greninja is getting hinting towards an early arrival, then i must say i don't know how they would justify such an important comeback so soon when they could just be patient to harvest more hype. Maybe they want him to be Sobble's mentor or something?