Guys, you should know those things about Pokémon Sun and Moon.
-There's a Tapu leader which is called Tapu Pono.
-Marshadow is Shadow\Rock typed
-The other Kahuna names are Loulu, Wauke and Koali.
-New Alolan Forms for Lapras, Pinsir and the Nidoran, Geodude and Dratini evolution lines.
-As many leakers said before, Ash Greninja is in the game only as an event
-The island in the middle of the map is the Battle resort.
-There are two Captains for each island and the Kahunas are a sort of Elite Four even if, as you know, there is one for each island.
-AZ is in the game and he will help the player against Team Skull. If you don't believe me, look at the Hawaiian history. In 1849, France invaded the Hawaii Islands, and AZ did a war against his brother... Is he from Alola, maybe?
-There are a lot of references to the first generation but Red isn't going to be in the game.
-Rockruff and starters secret is related to the AZOTH project.
-Megaevolution is in the game, but Alolan people don't know them as people from Kalos don't know Z moves, so in Alola there aren't new megaevolution but you will be able to use the old ones.
-There's a new Pikachu Cosplay which is called "Hawaiian Pikachu".