Answered Where Is Ash-Greninja?

[Life1421]

So, using my smart detective skills, i looked at the kalos pokedex on the wiki and found out that there was a Ash Greninja in the pokedex. However in the in-game pokedex it does not show. In addition, I can not evolve my Greninja into Ash Greninja. I think it will be an event but i'm not sure.

[misty_lax]

Ash-Greninja probably will not make it in the game. 

I happened to ask the same question on discord and Patrick said that it wont be added or maybe if he change his mind. If it will not be added, it will be the only real Pokemon in main game that is not added to this game.

[Auke1993]

There's multiple Pokémon, especially event ones, that aren't available yet in Pokémon Vortex.
It's likely that most of them, if not all, will become available in the future.
When and how that will happen is current;y unknown. We just have to wait and see.