The official Japanese Pokémon Twitter account announced today that the original web animation anime series Pokémon: Twilight Wings will be returning for an "expansion pass-inspired" short series titled "Star Festival" on November 5, 2020, at 11:00 pm (JST). It will be a one-episode special.
The "Star Festival" will be set in the Galar region, featuring the Pokémon Sword and Shield Expansion Pass, which also had its second part, The Crown Tundra released today on the Nintendo Switch.
More details for the special will be announced at a later date.
Pokémon: Twilight Wings is a Japanese original web animation anime series produced by Studio Colorido and released on YouTube by The Pokémon Company. It is a series inspired by the Pokémon Sword and Shield titles of the Pokémon video games, but it is not a part of the television series, similar to the preceding animations Origins and Generations. A total of seven episodes, each running for around six minutes, were announced for the series on 12 December 2019. The first episode was released on 15 January 2020, and further episodes were planned to be released on a monthly basis, however, the fifth episode was delayed from May to June due to the COVID-19 pandemic. The series concluded on 6 August 2020, when the final episode was released.
All the episodes of the web series have so far been released with an English dub on the English Pokémon YouTube Channel. It has not been announced if the new episode will be released in English at the same time as the Japanese version.
Source: Pokemon Official Twitter Account