* Nintendo's decisions: Events like these are entirely at the discretion of Nintendo. They make decisions based on popularity, game releases, and marketing strategies.
* Game versions: If there was a Shaymin event, it would likely be tied to a specific Pokémon game. So, if a new game is released, there might be a chance.
* Past patterns: Past events don't guarantee future ones. Even if Shaymin has been in events before, that doesn't automatically mean it will be again.
How to stay informed:
* Official Pokémon Channels: The best way to know about future events is to follow the official Pokémon channels:
* The official Pokémon website
* Their social media accounts (Twitter, Facebook, etc.)
* Pokémon Go news announcements
* Pokémon News Sites: Many websites specialize in Pokémon news. Keep an eye out for updates.
Keep in mind that it's always exciting to speculate and hope for events, but there's no way to know for sure until Nintendo makes an announcement.