eeeeeeeeeeeeeeeee.
I hope we get scuba gear.
I hope we get default coral reefs, better underwater lighting, and diving gear. Maybe more kinds of species; (but the Mo Creatures guy is releasing a shark in a day or two, and will add about 5 more species of shark later, as well as different kinds of fish that can be caught and kept in an aquarium, so I'm not in a big hurry for Notch to add things like that to vanilla...)
Because there's no real point in getting scuba gear if there's nothing to see underwater but dirt and squids, is there?