I think they should add sea villages!
It would be an amazing, interresting and exciting content.
It should work just like a normal village, with villagers and such, randomly generated on big oceans. The platform is supported by logs to the seafloor. In chests you can find fishingrods, fish, ink sacks, iron, boats etc!

Hope you like my idea.
~Sebboman007 / Sebastian Fuglsbjerg

ps. The photo i posted, isnt excactly the idea, but enjoy.