A Halloween Update

Such an update would include:

Taming bats with the use of spider eyes.

A scythe that can be used as a weapon which has a new enchantment to increase crop yields (farming wheat gives you 1 wheat, but farming wheat with a scythe with a harvest enchantment III gives you 2-4 wheat).

A special zombie type for cold biomes to match husks for the desert or drowned for the sea (perhaps called 'frozen').

An overhaul of the witch hut to make it slightly bigger, more detailed, and with better loot.

Currently, witches drop sticks in lieu of a wand. Perhaps, they could drop actual wands that can fire spells to give mobs certain effects based on the type of wand (or even allow players to use weak projectile explosives like the blaze or ghast can).