A nautical Frozen could work.
Last girl as the lead, other blond as the quirky sister. First girl would be the knowledgeable friend that helps them locate islands/treasures. 1st guy is the sisters "friend" but secret crush, and last is the captain who falls in love with main girl after fighting the antagonist and finding the treasure.
I want it now.
Edit: Whoops thought I saw something about frozen pt 2 sorry, and the artwork gives me nautical vibes.
