Spirit of Harmony

[Dave]

Trash in MoP is going to drop Motes of Harmony, ten Motes of Harmony will combine into a Spirit of Harmony, and Spirit of Harmony is going to be the new Chaos Orb:  crafters will need them for the better recipes, they'll initially be bind-on-pickup, but they'll probably be tradeable in a later patch.

DON'T VENDOR YOUR SPIRITS OF HARMONY!

Just keep combining your motes and saving stacks of SoH, and you'll be ready to make a bundle off of them on the AH once they're tradeable.  Alternatively, you can hand them to a guild crafter and get some of that better gear made for yourself.