Earlier this year, developer Game Freak confirmed that over 200 "legacy" Pokemon would be returning to both Sword and Shield through the two DLC expansions: the Isle of Armor and the Crown Tundra. Now that one of those DLC expansions is out, we have a pretty good idea of the legacy Pokemon returning for the second DLC.
Over on Twitter, a user managed to find PokeDex listings for various legacy Pokemon that have been left blank. This is a pretty solid indicator of some of the creatures that Game Freak plans to add when the Crown Tundra DLC launches later this year, and includes names like Mew, Articuno, Jynx, Mudkip, and others. For a full look at the extensive list, you can check out the Pastebin filing.
The confirmation of the returning legacy Pokemon for Sword and Shield's expansions came earlier this year in a Pokemon Direct. In January, Game Freak announced that older Pokemon from previous entries in the series would be returning to Sword and Shield through both the Isle of Armor and the Crown Tundra expansions. Right around 200, to be precise.
With the Isle of Armor expansion having launched for Pokemon Sword and Shield last week, we've already seen the return of some of these older creatures. Bulbasaur and Squirtle were included in the DLC for example, as well as Sandshrew, Poliwag, Abra, and a number of others.
Looking ahead to the Crown Tundra DLC, there's no launch date as of yet for the expansion. We do know that it'll be launching at some point later in 2020, and when it does, you can expect plenty of returning Pokemon from over the years to make a reappearance.