In the games and the anime, it sort of feels like we're not done with Zygarde yet.
1, what the heck were his cells doing in Alola in the game? 2, Greninja stayed with Zygarde in the anime, and made a rather unnecessary appearance in Alola in the games.
And finally, why are z-moves called z-moves? Has that ever been explained? Just seems weird to go right from XYZ to z-moves. Z is the mark of Zygarde, as we see in his own z-move, which was also showcased in the anime iirc.
What does all this mean for the anime? Do you think we'll see a reappearance of Zygarde and Greninja at some point?