New rumour: No Pokemon Z but Pokemon X2 and Y2

Now Nintendo did say something about them not planning a Z version. But I know it will be X2/Y2, for this reason. Mega Mewtwo X/Y + Mega Charizard X/Y. Now this is the MAIN reason for this theory. Zygarde is very weak for it to be the third member of the trio. It has the BST of 600- while Xerneas/Yveltal have 680 BST. In Gen 6, a new feature was added- Mega Evolution, which boosted the stats of Pokemon. Charizard and Mewtwo, however, have 2, both having game-specific mega stones. So, I predict that since they can do TWO different Mega Evolutions for one pokemon, then instead of releasing one new version, they'll give Zygarde two mega evolutions to boost his stats, Mega Zygarde X and Mega Zygarde Y. So, logically they would release two different versions for each Mega.