Well, might effect the entire theme of her wanting to explore beyond the ocean. I always loved that part of Ariel, I suppose as a gay man, because I love that she wasn’t happy where she was so she craved moving somewhere more tolerant so she could be loved and be happy.
but yeah maybe it could end with her and Eric deciding to travel together rather than just with a big wedding number. Or maybe even working it out so she can travel between the oceans and the earth. Maybe she and Eric can decide to travel to educate people to live with the ocean instead of ruthlessly pillaging it? That would be cool