Java Edition 1.14

1.14, the first release of Village and Pillage, is an upcoming major update to the Java Edition with the possible release date at the beginning of 2019. It will focus mainly on villages, adding a new subset of villagers and redesigning village architecture. This update will also introduce many new stairs, slabs and walls, and update the taiga biome.

Blocks

 * Stairs
 * 14 new stairs will be added, including stone, diorite, andesite, granite (and their polished variants) and smooth sandstone stairs.
 * Slabs
 * 14 new slabs will be added, including diorite, andesite, granite (and their polished variants) and smooth sandstone slabs.
 * Walls
 * 12 new walls, including diorite, andesite, granite, bricks, sandstone, prismarine, prismarine bricks and dark prismarine.
 * Campfires
 * Bamboo and bamboo shoots
 * Generate in bamboo forests in jungles.
 * Scaffolding
 * Can be climbed quickly.
 * The whole structure breaks when the bottom block is broken.
 * Crafted from bamboo.

Items

 * Crossbows
 * Stronger than bows, but slower to reload.
 * Will be able to be enchanted with new enchantments:
 * Multi-Shot
 * Fires three arrows at once in different directions.
 * Fast Reload
 * Decreases the reload speed.
 * A third secret enchantment that hasn't yet been revealed.
 * Can shoot firework rockets holding the crossbow in one hand and the fireworks in the other.
 * Can be crafted.
 * Bamboo
 * Can be eaten by pandas.
 * Can be used to craft scaffolding.
 * Berries
 * Found on berry bushes.

Mobs

 * Foxes
 * Spawn in taiga biomes.
 * Pillagers
 * Another subset of villagers.
 * Wield crossbows.
 * Will raid villages, killing villagers.
 * Pillager beasts
 * Large, bull-like creatures with armor and saddles.
 * Very tough.
 * Destroy crops.
 * Pandas
 * Spawn in bamboo forests.
 * Eat bamboo.
 * Have varying personalities and traits.
 * Can be lazy, playful, and/or aggressive.
 * Their emotions can be read on their faces based on whether they are smiling or not.
 * When they have red eyes, they are aggressive when attacked.
 * Baby pandas can sneeze, startling the parent.
 * Have a rare brown variant.

World generation

 * Berry bushes
 * Generate in taiga biomes.
 * Bamboo forests
 * New biome variant of jungles.
 * Contains bamboo shoots and pandas.

General

 * A rewrite of the game's rendering engine.

Mobs

 * Villagers
 * New skins, based on career and occupying biome.
 * Improved trading.
 * Cats and Ocelots
 * Cats and ocelots are being split into two separate mobs.
 * Cats are now able to spawn as strays in villages.
 * Have 9 new skins, one being chosen by the community.
 * Will bring the player "gifts".
 * Scare off phantoms.

World generation

 * Villages
 * Redesigned; new architecture per biome.
 * Generates in more biomes, such as snowy biomes and jungles.

Unconfirmed features
These features were mentioned during the development of 1.14 or during MINECON Earth 2018, but have not been confirmed to be added in this update.
 * Brown mooshrooms