"Something in the recent Overview trailer that I haven't seen anyone talk about [POTENTIALLY MAJOR SPOILERS]"

So at the 5-minutes-long Japanese trailer(https://youtu.be/eEzSvt1PSis) ,there are 2 pretty noticeable scenes that MIGHT confirm the battle after the Elite 4 is still Kukui.At 1:09,the player is seen walking to the throne place without anyone waiting for him there ,just like in SuMo. Then at 2:43 you actually see Kukui in what is clearly the champion's room.If that indeed means that he is the final challenger, then does that mean that nobody was able to beat him for ONE WHOLE YEAR? Or maybe he took the actual champion's title for himself recently?It could still be that at 1:09 it's like when you go to the throne to defend your title, or simply the champion arrives after you, or maybe he arrives when you're about to have the battle with Kukui and Kukui decides to make you two battle instead. At 2:43 he could be there to congratulate you or something, or possibly be a post-game challenger; assuming that feature is still in the game, that is.I remember some old leak saying something about Rainbow and Ultra and other stuff before USuMo was announced that I THINK mentioned the champion being a "mysterious guy", I would appreciate it if someone finds it, I couldn't.Anyway, why has nobody mentioned this before? The champion is usually a pretty hot topic.edit: u/Rosalia_R found the leak I mentioned.A guy from a Chinese forum said he had played the full game.He hinted two key words, U and Rainbow, before the USUM trailer was released.The story will happen in an alternate universe. You moved to alola 1 year later than you did in SuMo.League was built and the Champion is a mysterious guy.There is a group of people called Rainbow, which is a renewed version of an old organization with some old characters.Lillie will surprise you a lot. via /r/pokemon http://ift.tt/2h5yjou