Minecraft update 1.13, potentially the greatest update to be ever introduced to the lands of Minecraft, not only is about the addition of many features from the underwater, but it could also opens up many new possibilities and opportunities with these additions for the next coming update. But with many more interesting idea may come great controversies, so some of the ideas mentioned should be put into debate if great disagreements happen. Here are a few ideas I have to add on to the 1.13 update.
Yes, one of the most feared marine creature should be up for addition to this update aquatic. If Minecraft decided to add phantoms to hunt us in the nights, why shouldn't we expect sharks in the new waters to bite our flesh too? In my opinion, sharks should be a rare hostile mob that attacks the player exploring the Minecraft waters on sight. Upon death, it should drop it's fins, which later could be crafted into many potentially useful gadgets.
Although many would argue how sharks would give kids wrong idea about engagement with such a creature, this logic is heavily flawed. If Minecraft teaches kids to kill pigs with swords, pigs should be subject to removal, as wild boars in real life will maul anything that attacks it.
Yes, addition of another fossil fuel in Minecraft. Why might you ask, well understand how oil is made naturally. It all begins with the sun, which brings light to the earth. The light is absorbed by plants known as phytoplanktons living in water, which through photosynthesis, stores the energy. As these organism die off, they sink. As they decompose, oxygen is gradually used up as layers of sand would cover them. With no oxygen left, they are to be buried and under immense pressure and heat, they will form fossil fuels. Ones that experience the most pressure will become coal. Ones that experience the least pressure will become liquid oil. Since a large amount of oil is drilled from the coast and deserts, it should be added following the update.
Crude oil itself is to be found in pockets underground. Any oil 5 blocks away from sea floor underwater should emit some black particles (Oil floats in water). Oil must be picked up by an empty bucket, and it can't be dumped in water. If it flows into water, it will float on it and behave as if water is a regular block. Fish will suffocate in oil. Liquid oil on the ground will not be flammable and cannot be used as fuel without refining. Oil in bucket could be smelted into kerosene in a bucket. Kerosene will be flammable in physical form and could be used in furnaces to smelt 50 units. Other uses could be making plastic and other modern things, but that may be too much.
The only problem I see some players thinking about would be the medieval fantasy theme. Refining oil was developed in the late 1800's. TNT was invented in the 1800's. Electricity also became widespread in the 1800's. Iron golems = Modern Japanese Robots? There should be exceptions to the nature of Minecraft. Minecraft is a world where you can do almost anything you want.
Oh yeah, one more thing. I think this wouldn't advance Minecraft way too much, since I didn't add gasoline in the refining process. (Gasoline was dumped as trash before Rockefeller discovered it's use in combustion engines).
I am not going to talk too much about this idea, as steam66 already covered it. Basically, a fair ranged musket firing nuggets as ammo with a long reload time is what I'm looking for. Iron nuggets will deal more damage, but gold nuggets shall be accurate, as it can replicate the lead bullet effect. Muskets will break if fired underwater without enchantment. Why add this? Since tridents are going to be added as a powerful weapon in the water, I thought why not also have a powerful weapon on land, or the hell?
It's been a long time since Minecraft has added consumables hasn't it? With the kelp in the upcoming update, we shouldn't just let it be and feast on seaweed all day. We should add something else to go along with it. By this, I suggest adding another crop, rice. Everyday, billions of people consume this calorie dense crop, and we haven't seen them added. Rice is to be grown submerged in water, and harvested in piles. These piles can then be crafted with water into steamed rice chunks. These with fish and seaweed could be made into sushi.
These are my ideas as of now. This list may be updated at later times, so please feel free to critique the ideas or suggest some improvement to get mojang's attention down below.