Typically, the decisions about who lives, who dies, and who tells the story in an animatic are made by the team of writers and animators. They consider various factors such as character arcs, the overall theme, and the intended impact on the audience.
A royal family cartoon show could feature things like their grand events, behind-the-scenes moments, or even fictional escapades. It might focus on showing their human side and relationships in a charming and colorful way.