PartingVisions.Com has some information on the PvP armor updates - specifically, screenshots for mage, hunter, druid, warrior, warlock, rogue, shaman, and paladin sets. (There's a link to an image named priest.jpg that currently seems to be broken.) You can compare them to the existing PvP sets here. The changes are losses in some places and gains in others, and your like of them may depend on your play-style. So check them out and let us know what you think.
[Fan art by Guillaume Bonnet]