Legendary Pictures is the name of a film and television production company that announced in 2019, it is developing a new series based on the Oz books.
Wiki notice: Until the show is named, any info pertaining to it will be on this company page.
As reported from Variety: ”The untitled series hails from Ed Ricourt, who will write and produce. The series will examine stories and characters in Oz that haven’t been previously explored. When the return of a long-exiled Witch brings fear, division and war to Oz, the only hope is a servant girl who may become the most powerful and dangerous woman in the land.”
Dmitri M. Johnson & Stephan Bugaj of dj2 Entertainment will executive produce.
Based on limited details, it could be speculated that the servant girl in question is none other than Jellia Jamb but this has not been confirmed.
Link: https://variety.com/2019/tv/news/oz-tv-series-legendary-tv-ed-ricourt-1203144054/