Guardian of Remembrance launching end October.

During the latest Nintendo Direct the next wave of the Hyrule Warriors: Age of Calamity Expansion Pass was revealed.

Wave 2 – Guardian of Remembrance will release on the 29th of October 2021 and will add the following:

• New character vignettes: Battle for Kakariko Village, Battle of Goponga Village and more
• Newly-added stages, including the Coliseum
• Expanded roster, including Purah and Robbie
• New battle skills for existing characters

Source: Nintendo