Come get your birds, golems, pixies, musketeers, and gerbils.
http://www.nintendoworldreport.com/news/55060/next-pokemon-expansion-pass-updates-coming-tomorrow
We won't have to wait long for more details on The Crown Tundra.
The Pokemon Company has announced a video of updates on the second part of Sword and Shield's Expansion Pass will be available tomorrow at 9 a.m. ET, 6 a.m. PT, and 1300 UTC.