Season 7 Armor Sets are up for review at MMO Champion, and here's a preview. Remember this is all courtesy of MMO Champion:

Season 7 Armor Sets Model Preview #2
The Season 7 Models were also updated in the latest PTR builds and it's time for an update. Keep in mind that this is from the test servers, some models aren't finished yet. (Mage shoulders are bugged, the color of the hunter's helm seems to be the old one, the female priest breastplate seems bugged, etc ...)

Death Knight
Male
Female

Druid

Hunter
Male
Female

Mage
Male
Female

Paladin

Priest
Male
Female

Rogue
Male
Female

Shaman

Warlock
Male
Female

Warrior
Male
Female