Premieres sometime in 2025. The new PV is here. Check out the ANN article for additional information. Synopsis for the first season from AniList:
Maomao lived a peaceful life with her apothecary father. Until one day, she’s sold as a lowly servant to the emperor’s palace. But she wasn’t meant for a compliant life among royalty. So when imperial heirs fall ill, she decides to step in and find a cure! This catches the eye of Jinshi, a handsome palace official who promotes her. Now, she’s making a name for herself solving medical mysteries!
I watched the Brother Cadfael mysteries on PBS when I was growing up and this reminds me of that favorably.