Cool Nether Details and mechanics!

So basically the nether is a dimension with room for so many new mechanics. One which I really like is that when breaking soul sand should a soul show up and rise up a bit before fading since there is the face of a soul in soul sand. Another one regarding to soul sand is that when killing a skeleton on soul sand or with fire from flint and steel, lava, etc. There should be a chance for that skeleton to turn into a wither skeleton since it technically withered away and this would also explain why wither skeletons can drop coal. Speaking of their drops, a final thing is that wither skeletons should drop a bone called black bones or withered bones which could be useful for making a new bonemeal that decays crops and grass instead of growing it. I completely understand if you don’t like this idea and I also understand ti the regards you are coming out with the new Popular Forest Biome and everything but I do ask you take consideration into this. Thank you, and keep making Minecraft Unique!