Zombians (Biome)

A Biome that is dominated by Zombies. This Biome will be very rare, and there's a giant Zombie (a boss). There is a castle in this Biome, right in the centre. That's where the boss will be. In the castle there will be loot chests that contain weapons and armor. When you defeat the Giant Zombie, you will get its heart, and with that you can either heal Zombie villagers, to turn them human (the process of turning human will be slow.) Or you can use it on the ender dragons egg to revive it, as a Zombie dragon. I hope you consider something like this, as an update about zombies would be quite cool.