For someone like me that didn’t finish the latest Pokemon games, buying the expansion seemed like a bad idea until I read this.
IGN had a hands off demo and they noticed that the game seemed to be scaling to the level of the player, meaning that even I could pick up the expansion and play it having not even reached the halfway mark of the original game.
We asked Nintendo product marketing specialist Demetrius Boggs if this meant level scaling was in place, and he confirmed that Pokemon Sword and Shield’s Expansion Pass area’s trainers and wild Pokemon will in fact scale with your own Pokemon levels.
Not only that, but these areas can be accessed as soon as you reach the Wild Area of Pokémon Sword and Shield, just a few hours into the games. So whether you’ve just started or have already completed every post-game activity and have a full party of level-100 Pokémon, both parts of the expansion pass–The Isle of Armor and The Crown Tundra–will match your Pokémon’s level.
As of now, we’re unsure whether the DLC areas will continue to scale with your level, or if the areas become locked to the level your Pokémon were when you first visit, but we will update this as soon as we hear back from the Pokémon Company.Source