This year's 20th issue of Hakusensha's Hana to Yume magazine is announcing on Friday that Mizuho Kusanagi's fantasy shōjo manga Yona of the Dawn (Akatsuki no Yona) is inspiring a stage play in 2016. More details will be on the production's official website and in Hana to Yume.
At this point you are the exception if your anime or manga isn't getting a live adaptation.