It's weird that we're already learning about XY10 when we know almost nothing about XY9. I think we all saw this one coming since they won't make Kadabra but then again in this case this situation is not unique as that is how they have chosen to handle all mega evolutions.
Glad to see Zygarde will be making some kind of appearance, but here's a thought. XY10 will be our May set. If they were to hold back the Zygarde related stuff (and they could since it's a deck not part of XY10) until the English version of whatever XY11 will be, by September they might have released the third part of the sixth gen game.
That being said, let's get back to XY9, of which we already known basically nothing about.