Firstly - jeb decided that he would give us the old ladders back. thank god.

Secondly - Zombies will be smarter than usual they wont get stuck behind walls and trees anymore, lets just say they will put up more of a fight.

Thirdly - If you put a Mob egg in a dispencer it will shoot out live Mobs, not just the egg

forth - There will be an additional biome, the Jungle biome. my dream biome ;D