The Pokémon Company has confirmed that in Pokémon Ultra Sun and Pokémon Ultra Moon, a new form of Lycanroc will appear, in addition to the previous Midday and Midnight forms.
The new Dusk Form Lycannroc differs from the previous forms in terms of eye color and body color. The Pokémon Company announced that players won’t be able to obtain the new for "by ordinary methods, such as discovering the mysterious Pokémon in the wild."
Pokemon Ultra Sun/Ultra Moon is announced for 3DS only. The game brings players in another adventure in the world of Pokemon Sun/Moon with an alternate storyline as well as new Pokemon for trainers to catch. The new versions are scheduled for 17th November worldwide.