This is why, it is not surprising that Netflix looks for other advantages from the Witcher franchise. Since then, they announced that they will release an animated film based on The Witcher, dubbed The Witcher: Nightmare of the Wolf. According to the brief description, "The Witcher's world develops in this anime film and further explores the new threats facing the Continent."
At this time, there are no additional details such as casting the cast. However, the film is expected to feature producers Lauren Hissrich and Beau DeMayo who are behind the TV series. The film will also be animated by Studio Mir, a Korean animation studio that has made the film The Legend of Korra and Voltron: Legendary Defender.
There is no time limit when this animated film will be released. Meanwhile, the second season of The Witcher series is expected to be released in 2021. It looks like the Animation version will be released this year to fill the gap until 2021.
Source:
IGN