Halloween Update

Announcement
The Minecraft Halloween Update is planned by notch to be released on October 31, 2010. The planned features to be released are:


 * A "Hell" world that can be used for quick travel, where you "portal in" walk ten meters and then "portal out" and you're hundreds of meters away
 * New monsters
 * More danger at deeper depths in-game
 * Torches that eventually burn out, but are relightable, and the introduction of lanterns as a new infinite light source
 * Fishing
 * Multiplayer fixes
 * Craftable Jack-O-Lanterns and pumpkin helmets
 * Craftable watch
 * And more. [See image]

This was announced on October 4th, 2010, and can be seen at  minecraft.net/boo

Media
No gameplay footage has been released yet, but there are some announcement videos and commentaries here and here.