I know a few guildies are going to ask so i thought i would get in first.
The patch 4.0.6 has been delayed by 2 week due to class mechanics issues. The PTR patch notes have been updated and can be viewed here
Most interesting of the lastest notes is that priests are getting a nice DPS buff and better mana usage. Unfortunatly there is no change to Shamies.
Have a read of the notes. I have reviewed most of them, any questions please reply here or see me in game.