The announcement of Pokémon Scarlet and Violet came with a trailer that showed off the region it's set in, and it looks as though it could be modeled on Spain. No official confirmation has come from Game Freak as of yet, and neither has the name of the region, but it's so far become accepted by much of the fanbase. Considering the evidence available, it seems probable that Scarlet and Violet will be set in a fictional version of Spain — unless a major curveball is thrown between now and the game's launch.
Pokémon Scarlet and Violet's region was shown during the Pokémon Presents February 2022 video. It promised an open-world region without any transitions between areas, which is exciting for those who were hoping for the same thing in the time leading up to Pokémon Legends: Arceus' release. If Pokémon Scarlet and Violet is like Legends: Arceus, then it would appear that the series has a promising future in terms of innovation, and is hopefully listening to its players. No other details about the region were given aside from these facts, not even the name, so many are working overtime to try and get any scrap of information they can out of the trailer.
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The reason many believe the next games' region to be based on Spain is due to some prominent landmarks shown in the trailer, which bear a close resemblance to real-life ones in the real-life country. The names and appearances of two of the starters also hold a clue, although it may be less obvious. What this means for the games and the region itself can't be said for certain at the moment, but many have their own theories. The Pokémon revealed in Scarlet and Violet's trailer, aside from the starters, don't offer many hints,
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