Yes, "The Witcher: Blood Origin" is connected to "The Witcher" series. It's a prequel set in the same universe, taking place about 1,200 years before the events of the main series. The show explores the origins of the first Witcher and the creation of the Witchers, delving into the history of the Continent and the events that led to the pivotal Conjunction of the Spheres. It features new characters and storylines while still being tied to the lore established in both the books by Andrzej Sapkowski and the original Netflix series.

As of now, there has been no official announcement regarding a second season of "The Witcher: Blood Origin." The show, a prequel to "The Witcher," was initially designed as a limited series, focusing on the events that led to the creation of the first Witcher. While the future of the franchise may include more content, including potential spin-offs or additional seasons, fans should stay tuned for any updates from Netflix regarding the show's continuation.

You should watch "The Witcher" first before "The Witcher: Blood Origin." "The Witcher" is the main series that introduces key characters and the primary storyline set in the same universe. "Blood Origin" serves as a prequel, exploring the origins of the Witchers and the events leading to the creation of the first Witcher. Watching the main series first will provide you with important context and background, enhancing your understanding and enjoyment of the prequel.

In "The Witcher: Blood Origin," Jaskier appears as a storyteller and bard, providing a narrative framework for the story. His presence connects the events of the prequel to the larger "The Witcher" universe and offers a familiar face to fans of the franchise. While primarily a character in the main series, Jaskier's role in "Blood Origin" emphasizes the importance of storytelling and folklore in the Witcher world, linking the past to the present through his songs and tales.