Pokemon Sun and Moon and Gen 7 as a whole appeared a lot in the so-called Teraleak, revealing all kinds of ins and outs of the games - from Mimikyu's true form to the various cut Pokemon and forms ...

Of course, not having Pokemon Gyms was a contentious aspect of Pokemon Sun and Moon, and will be a contentious aspect of Pokemon Gen 10 if this rumor is true. Emphasis on “if true” though.

If you want the Ash-Greninja with Battle Bond, you need to make sure to have the Pokémon Sun and Moon demo and Pokémon Bank downloaded before the eShop closes.