Nothing is confirmed in the anime. If the writers want to bring back Greninja or to make him rejoin Ash's team, they will, regardless of the reason. As such, we can't say for sure that Greninja is gone forever, and his huge popularity significantly raise the chances of a cameo or even a return...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.