A leak related to Pokémon Winds and Waves suggests that generation 10 will include a significant number of new Pokémon, potentially adding hundreds to the franchise. The leak has also revealed details about specific new Pokémon, including seven that have been identified, as well as possible evolutions for existing Pokémon like Psyduck and Eevee. The implications of the leak are unclear, with some outlets suggesting it may have negative consequences for other games in the series.