evolved mobs update

in the next update mojang should work on adding smarter evolved mobs, which would make gameplay much more interesting. For example, they could make better variants of mobs such as a bigger phantom that spawns as the player skips more than 10 days of sleep, and it grabs the player and drops them from a height of 4-23 blocks. Another mob they could add is a bone serpent like from Alex's mobs when after killing it the mob would drop its glass eyes which can be used to see in the lava, where the game could implement hidden treasures thrown into lava lakes. The final type of example I would include just to picture a clear idea about this update would be a mob thats basically a chupacabra, which is blue red eyed humanoid monster that eats livestocks, so players would need to fortify the livestock. These would make game mechanics different and provide more quality gameplay.