Shen Liyue was in the novel. Shen Li was the female lead of the novel "Journey with the Phoenix"(also known as "This King Is Here"). Her father was the Demonic Beast King, Feng Lai, and her mother was Liu Yu, the second disciple of the Demonic Lord Liu Ming. Shen Li's background was very special. She was a mixed-blood of the Spirit Race and a demonic beast. She had experienced many twists and turns in the story, and she had a legendary love story with the male protagonist Xingyun for a thousand years. Shen Li's identity and storyline were one of the core contents of "Journey with the Phoenix".
As of now, the Genshin manga is not finished. The story is still evolving and there's more to come for fans to enjoy. The creators are taking their time to develop a rich and engaging narrative.
There's no definite answer yet. It might continue if there's enough demand and the creative team has more story to tell. But it could also stop if they feel they've completed the story arc.
There is a Genshin Impact manga available. It brings the game's world to life on the page with beautiful art and engaging storylines. It's a great companion to the game.