I was thinking what if there could be a mod set in the end of the post-apocalyptic age in minecraft or where you can usher it in by doing something like a ritual? Civilisation would gradually reboot as a result in the Minecraft world back to when it was during the time the abandoned structures were built etc. What will happen is that zombies and skeletons will cease to spawn everywhere on the surface world at night, mainly relegated to areas where the dead would be buried like temples, catacombs or certain ruins and dungeons where 'many have died at'? The focus might shift more to adventure, the player making a living, expansion and wars/conflict.
They would be replaced with hostile surface world living mobs (Monsters and wild animals) that are sometimes encountered randomly or depending on spawning areas where their habitats are, this might mean endermen may stay but maybe won't just randomly be everywhere. Creepers would become relegated to the underground or a different dimension, idk how spiders should be handled. Obviously we have the pillagers as intelligent enemies. What will happen is as civilisation in the minecraft world begins to return, villagers may spawn in more sophisticated ways or be able to expand and fight.
There will be wars of course across the lands sometimes between the two tribes: Villagers and pillagers as they compete for space, land to settle on. Warfare and sieges may become more sophisticated, with possibly nobility and monarchies forming among them. There might be scenarios where you explore abandoned structures to salvage what artifacts and knowledge the previous destroyed civilisations had.
Do you think we would find a way to cure the non-villager zombies and turn them back into whatever they were previously or are they too far gone to be cured?
As an added bonus if anyone interested in this idea wants to do some story stuff, the player would probably be seen as a 'legendary figure' if the villagers, humans or whatever somehow 'know' its you who ended the 'age of darkness' or whatever it is where undead mobs and creepers dominated the night or whatever.