http://www.pokemon-sunmoon.com/ultra/en-us/alola-region.html
>New Look for a New Adventure
>The look of the main characters’ outfits has changed from the first trip through the Alola region—just in time for them to begin a new adventure! Choose the Pokémon that will become your partner, and set out on a journey through the world of Alola!
They're the same characters with different clothes. At least Special/Adventures will have an easier time with it.
This protagonist are different from the originals
They are from Sinnoh not Kanto so its different character, it was mentioned on youtube, the 1st trailer
>>33322415
sinnoh remakes confirmed