haha true that and it could go either way really.
also there is a possibility that they run in to an old charter in this human town that they are heading to. it would be a cool way to reintroduce a character and maybe a good way to add another member. but yeah a fish man would be a good bet right now a bit on the obvious side but a good bet. also do not for get the possibility of a half human half fish man that would also make some sense as a crew member. there are a lot of possibilities in this arc so who knows.