Uhhh, really solid evidence for it being gen 7, outside of the New Pokemon thing:
"Using Pokémon Bank, you'll be able to transfer Pokémon you've caught in the Nintendo 3DS Virtual Console versions of Pokémon Red, Pokémon Blue, and Pokémon Yellow into your copy of Pokémon Sun or Pokémon Moon. Pokémon from Pokémon Omega Ruby, Pokémon Alpha Sapphire, Pokémon X, and Pokémon Y can also be brought into Pokémon Sun and Pokémon Moon in the same way."
While that could just mean generic transfer a la between XYORAS, it kind of sounds like Bank will be the method of moving Pokemon, which was gonna happen in the new gen anyway. But it suggests trading (and therefore battling) doesn't happen with them. Hurrm. Now I'm kinda sad? I liked Kalos a lot and wanted to visit it again :o