User blog comment:Emptylord/Leaked Champion: Vel'Koz/@comment-7709681-20140117012741/@comment-6271162-20140117154238

I don't think anyone actually rules the Void in particular... Look at the creatures we know from it. They are basically just animals, with great intellect, but they still are. They keep fulfilling their primitive needs (desire for food in this case), so there likely would not be a structured organization in the Outside.

I would have guessed that the Voidborn might be led by the ultimate predator, but since Kha'Zix fits that role, I do not expect another superb hunter to emerge as a champion.