A Whole New World
In Frozen, we see the King and Queen riding on a ship that eventually crashes and sinks to the bottom of the ocean. Now, you might theorize that the couple perished or survived on some remote island somewhere (we’ll go over this in a bit). However, what we can all say with great certainty is that their ship and the one in The Little Mermaid are identical.
Or they’re at least as identical to each other as CGI and hand-drawn animation can make them look. This would lead us to the conclusion that Ariel and Elsa belong to the same universe.