That was a great way to end the ep, going into the mid-season break. The long wait to find out where he ends up is gonna kill me, but it was a cool ending.
Water connects worlds, so I reckon he could end up just about anywhere. Maybe a curious mermaid who collects random treasures will find him. 😉 (I know we haven’t heard anything to even remotely suggest that Ariel’s gonna be a crossover character, I’m just saying, it’d be fun.)