Here are some things coming in 1.3:
Pyrymids
They spawn randomly in the desert
They have a trap room with chests and diamonds... But also TNT traps!
Sandstone Villages
If a normal village spawns in a desert... It becomes a Sandstone Village!
Desert Well
A sandstone well that spawns in deserts, seperate from desert villages.
Jungle Temples
An Uber-Cool, trap-filled temple that spawns in jungles.
Tripwires
A... well... tripwire!
Sends a redstone charge if you trip it.
Also adds placable string.
Emeralds
A new ore that you use to trade with Villagers, and emerald blocks.
also Villager trading: Right click to trade!
Ender Chests!
Well, basically cloud storage for your items.
Writeable Books!
AKA book and quill. Finally. This feature is awesome! Combine with Ender Chests to make a kind of Wikipedia!
AND MUCH, MUCH MORE!
