>>27099959its the not so distant future
physical game carts are no more, games are basically played from a cloud and arent even actually stored on your handheld, only save file and personal data are.
you are now basically buying one-time-pay access to games
pokemon "versions" are no more.
instead, there is simply "the" Pokémon game.
In its initial release it was basically another remake of RGBY.
Then a "hub" was added
In the hub, you have your customizable trainer and walk around with it like in a battle frontier, having access to: a wifi-arena, event-corner, battle shop, daycare area, training facility, pokebank and an ever increasing amount of battle facilities and minigames
and of course after this, you access the RGBY-remake from the hub, where it is called "Kanto-Episode I", and you still turn into the protagonist of said game while playing it.
later, they slowly added more and more of the games now renamed as "region-episode I" and you can siwtch between any of them as you go along, always having access to all the boxed pokemon in the bank feature.
whenever a new region/game was added, any mechanics and graphics updates came along with it, they were also applied to all the previous games (which were already programmed with this in mind from the beginning)
additional episodes started to come out starting with "Hoenn-Episode II", which were basically sequels changing a lot of things and adding content and story on top of the previous game.
of course entirely new regions were also added as usual.
and with all these changes to how the main games are handled, the "all regions in one game" idea was by that point simply redundant, as now any of the regions were accessible and kept updated already anyway.
