>>26503872>>26503883>>26503891The strongest Mega Evolution Acts have clearly been established as canon to the main anime, which also makes Ayakya and Louie canon characters, even though they are now also appearing in the main anime, so Alain should recognize the both of them with no problem.
It would severely annoy me however, if Ash and Ayaka didn't remember each other when they've clearly met and battled, albeit in the Dianice movie.
I guess if they did remember each other, we can safely say that the movie is 100% canon.
