During Nintendo's pre-E3 2017 Direct revealed that Pokemon Sun and Pokemon Moon were getting another release on the 3DS, this time as 'Ultra' editions.
Pokemon Ultra Sun and Pokemon Ultra Moon will offer an alternate story taking place in the world of Pokemon Sun and Pokemon Moon and will feature Pokemon that didn't appear in the original versions. The game will also come equipped with "new features" like the dusk form of Lycanroc (and here's how you get that).
A new video for the upcoming Ultra version of the game shows off the heroes we will be playing as, as well as some details on Lycanroc.