Ocean Biome idea

With the new generation and lower limit of the y-axis, we can now delve deeper into the earth and the ocean. I think another aquatic overhaul would be neat. With the addition of an abyss biome and deep sea creatures. As you dive deeper the amount of light coming through the water would lessen, so when you were low enough it would be almost pitch black. This would be a reason to pack night vision potions with you. Also water breathing potions due to the extreme depths, possibly adding some sort of diving helmet and/or air tank (chest piece) for an increased air supply, maybe even flippers for increased movement (although there already is the depth strider enchantment). There could be ships or other ruins that spawn within the abyss that contain higher quality treasure due to the difficulty of the area. There might be a possible boss or mini boss to add as well. Some kind of Leviathan, Serpent, or Kraken style creature. Well, if you took the time to read all of that, thank you. Have a good day