Board Thread:Episodic and Issue Discussion/@comment-5624498-20190111151428/@comment-5008987-20190117034158

I concurred/thought of Deathstroke as being the most likely, new head of the League of Shadows because even though Earth-16 is obviously its own universe, I figured it might be a nod to one of the films in the new DC animated universe where Slade overthrew Ra's and became the new head of the Assassins (I think it was the first film Damian was introduced in). There's also his previously voiced aspiration to become a head of the Light. Taking over Ra's' League of Shadows (Ra's being a head of the Light back when he controlled the Shadows) seems sufficient for him to achieve his goal.

Could also be Shiva now that people mention her role as such in the comics; might be how he's introduced to Earth-16.