Personally, I'd hope for a bigger Pokemon project
It would be a real 3d rpg, not cheapy 3d like on 3ds
you would start in kanto region, and explore the map and catch pokemon and whatever you normally do in a pokemon game
but in this reboot, it will be Open World
if you stay on roads, you will follow the main storyline and you will mainly figth trainers.
but if you get in the woods, in caves, etc, youll get Pokémon encounter more often, and find NPC who will give you secondary mission.
Of course, there will still be 8 badges, but I'd also like to see other kind of badge/trophy
Like a Gym specially for Fighting Pokemon type, you know? Optional gym...
Also, months or a year after the release of this game, Ninty will release the Jotho expansion, and with the S.S.AQUA, you will be able to travel to Jotho region, with all the same gameplay I mentionned above.
Same with Hoenn, Sinnoh, Unova, Kalos, and maybe even Alola