What If Tarzan Was Elsa and Anna's Brother?

Tarzan being Anna and Elsa's long lost brother is a theory originally pushed by Frozen/Tarzan co-director, Chris Buck. While Frozen 2 officially shut the door on that prospect, it doesn't mean we can't ponder the possibilities. So what if these two franchises collided in one film? Let's take a trip into Disney Elseworlds and find out!