https://www.gamespot.com/articles/pokemon-ultra-sun-and-moon-all-the-new-pokemon-ult/1100-6454889/

Pokemon Ultra Sun and Ultra Moon launch for 3DS very soon, on November 17, and while the two games are largely based on the previous Sun and Moon versions, they set themselves apart from last year's titles with a host of new content. Along with an expanded story that sheds more light on the mysterious Legendary Pokemon, Necrozma, the pair introduce a handful of new features and even Pokemon to the series.

If you've already played Sun or Moon and are unsure if the upcoming titles differ enough to warrant a return trip to Alola, we've rounded up all of the new Pokemon, moves, and features Nintendo has announced thus far to give you a better idea of what's new in Ultra Sun and Ultra Moon. You can read more about the games in our Pokemon Ultra Sun and Ultra Moon review. And if you're unsure which version is right for you, we broke down the major differences between Ultra Sun and Ultra Moon.