It looks like you're referencing a fictional or speculative announcement—because as of now, Pokémon Pokopia does not exist in any official capacity, and there is no confirmed game by that name from Nintendo or The Pokémon Company.

The description you provided sounds like a fan-made concept or a playful "what if" scenario blending Animal Crossing’s life-simulation charm with Pokémon’s creature collection and customization. The idea of playing as a human-shaped Ditto, learning skills from various Pokémon to build and craft in a peaceful world, is actually quite creative and fits a popular fan wishlist—especially for a more relaxed, artistic take on the Pokémon universe.

For reference:

• Pokémon has previously explored life-simulation elements in Pokémon Home and Pokémon Café ReMix, but not in a full game like this.
• Animal Crossing: New Horizons and The Legend of Zelda: Echoes of the Past (2024) have inspired many such crossover-style dream games.
• The September 2025 Nintendo Direct you mentioned hasn’t happened yet—and no official details have been released about it.

So while Pokémon Pokopia might not be real… it’s a fantastic concept that could easily become a hit if made! If you’re imagining it as a fan game, mod, or even a pitch, it’s definitely one worth sharing. 😊

Would you like help turning this idea into a full game pitch or concept art description?