Season 7 Armor / Weapons Preview, MLG Columbus VOD

Season 7 Armor Sets Preview
Season 7 armor sets have been discovered on PTRs, keep in mind that we're in early stages of the Patch 3.2 testing and that a lot of models are still bugged

 Death Knight
Sorry, not yet available.

 Druid

Season 7 Druid - Heal
Season 7 Druid - Melee
Season 7 Druid - Spell DPS        

 Hunter

Season 7 Hunter

 Mage

Season 7 Mage

 Paladin

Season 7 Paladn - Melee
Season 7 Paladin - Spell

  Priest

Season 7 Priest - Heal
Season 7 Priest - DPS

 Rogue

Season 7 Rogue

 Shaman

Season 7 Shaman - Spell MP5
Season 7 Shaman - Spell
Season 7 Shaman - Melee

 Warlock

Season 7 Warlock

 Warrior

Season 7 Warrior
 

Season 7 Weapons Preview
Weapons have also been discovered on PTRs! Prices aren't available yet but are most likely the same as last season.

ilvl Type Slot Item
258 1H Axes Off Hand Relentless Gladiator's Dicer
258 1H Axes Off Hand Relentless Gladiator's Splitter
258 1H Axes One-Hand Relentless Gladiator's Handaxe
258 1H Maces Main Hand Relentless Gladiator's Salvation
258 1H Maces One-Hand Relentless Gladiator's Truncheon
258 1H Swords Off Hand Relentless Gladiator's Swiftblade
258 1H Swords One-Hand Relentless Gladiator's Longblade
258 2H Axes Two-Hand Relentless Gladiator's Sunderer
258 2H Maces Two-Hand Relentless Gladiator's Crusher
258 2H Swords Two-Hand Relentless Gladiator's Claymore
258 Bows Ranged Relentless Gladiator's Recurve
258 Crossbows Ranged Relentless Gladiator's Repeater
258 Daggers Main Hand Relentless Gladiator's Mageblade
258 Daggers Off Hand Relentless Gladiator's Dirk
258 Daggers Off Hand Relentless Gladiator's Eviscerator
258 Daggers One-Hand Relentless Gladiator's Spike
258 Fist Weapons Main Hand Relentless Gladiator's Grasp
258 Fist Weapons Off Hand Relentless Gladiator's Left Razor
258 Fist Weapons Off Hand Relentless Gladiator's Left Claw
258 Guns Ranged Relentless Gladiator's Shotgun
258 Polearms Two-Hand Relentless Gladiator's Halberd
258 Staves Two-Hand Relentless Gladiator's Skirmish Staff
258 Staves Two-Hand Relentless Gladiator's Acute Staff
258 Staves Two-Hand Relentless Gladiator's Combat Staff
258 Staves Two-Hand Relentless Gladiator's Light Staff
258 Staves Two-Hand Relentless Gladiator's Greatstaff
245 1H Axes Off Hand Relentless Gladiator's Hacker
245 1H Axes Off Hand Relentless Gladiator's Chopper
245 1H Axes One-Hand Relentless Gladiator's Cleaver
245 1H Maces Main Hand Relentless Gladiator's Gavel
245 1H Maces Off Hand Relentless Gladiator's Bonecracker
245 1H Maces One-Hand Relentless Gladiator's Pummeler
245 1H Swords Off Hand Relentless Gladiator's Quickblade
245 1H Swords One-Hand Relentless Gladiator's Slicer
245 2H Axes Two-Hand Relentless Gladiator's Decapitator
245 2H Maces Two-Hand Relentless Gladiator's Bonegrinder
245 2H Swords Two-Hand Relentless Gladiator's Greatsword
245 Bows Ranged Relentless Gladiator's Longbow
245 Crossbows Ranged Relentless Gladiator's Heavy Crossbow
245 Daggers Main Hand Relentless Gladiator's Spellblade
245 Daggers Off Hand Relentless Gladiator's Shiv
245 Daggers Off Hand Relentless Gladiator's Mutilator
245 Daggers One-Hand Relentless Gladiator's Shanker
245 Fist Weapons Main Hand Relentless Gladiator's Right Ripper
245 Fist Weapons Off Hand Relentless Gladiator's Left Render
245 Fist Weapons Off Hand Relentless Gladiator's Left Ripper
245 Guns Ranged Relentless Gladiator's Rifle
245 Polearms Two-Hand Relentless Gladiator's Pike
245 Staves Two-Hand Relentless Gladiator's Battle Staff
245 Staves Two-Hand Relentless Gladiator's Energy Staff
245 Staves Two-Hand Relentless Gladiator's War Staff
245 Staves Two-Hand Relentless Gladiator's Focus Staff
245 Thrown Thrown Relentless Gladiator's War Edge
245 Wands Ranged Relentless Gladiator's Touch of Defeat
245 Wands Ranged Relentless Gladiator's Baton of Light
245 Wands Ranged Relentless Gladiator's Piercing Touch
251 Misc. Off-hand Relentless Gladiator's Endgame
251 Misc. Off-hand Relentless Gladiator's Reprieve
251 Misc. Off-hand Relentless Gladiator's Grimoire
251 Shields Off Hand Relentless Gladiator's Shield Wall
251 Shields Off Hand Relentless Gladiator's Barrier
251 Shields Off Hand Relentless Gladiator's Redoubt

Season 7 Non-Set Items Preview
New skins aren't available yet for any of the non-set items or cloaks.

Cloth
Relentless Gladiator's Cuffs of Salvation
Relentless Gladiator's Cord of Salvation
Relentless Gladiator's Cord of Dominance

Leather
Relentless Gladiator's Armwraps of Triumph
Relentless Gladiator's Armwraps of Salvation
Relentless Gladiator's Armwraps of Dominance
Relentless Gladiator's Belt of Triumph
Relentless Gladiator's Belt of Salvation
Relentless Gladiator's Belt of Dominance

Mail
Relentless Gladiator's Wristguards of Triumph
Relentless Gladiator's Wristguards of Salvation
Relentless Gladiator's Wristguards of Dominance        
Relentless Gladiator's Waistguard of Triumph
Relentless Gladiator's Waistguard of Salvation
Relentless Gladiator's Waistguard of Dominance

Plate
Relentless Gladiator's Bracers of Triumph
Relentless Gladiator's Bracers of Salvation
Relentless Gladiator's Girdle of Triumph
Relentless Gladiator's Girdle of Salvation

 Necks
Relentless Gladiator's Pendant of Ascendancy
Relentless Gladiator's Pendant of Deliverance
Relentless Gladiator's Pendant of Dominance
Relentless Gladiator's Pendant of Salvation
Relentless Gladiator's Pendant of Subjugation
Relentless Gladiator's Pendant of Sundering
Relentless Gladiator's Pendant of Triumph
Relentless Gladiator's Pendant of Victory

Rings
Relentless Gladiator's Band of Ascendancy
Relentless Gladiator's Band of Victory

Cloaks
Relentless Gladiator's Cloak of Ascendancy
Relentless Gladiator's Cloak of Deliverance
Relentless Gladiator's Cloak of Dominance
Relentless Gladiator's Cloak of Salvation
Relentless Gladiator's Cloak of Subjugation
Relentless Gladiator's Cloak of Triumph
Relentless Gladiator's Cloak of Victory

Relics
Relentless Gladiator's Idol of Tenacity
Relentless Gladiator's Idol of Steadfastness
Relentless Gladiator's Idol of Resolve
Relentless Gladiator's Libram of Fortitude
Relentless Gladiator's Libram of Justice
Relentless Gladiator's Sigil of Strife
Relentless Gladiator's Totem of the Third Wind
Relentless Gladiator's Totem of Survival
Relentless Gladiator's Totem of Indomitability

As far as it looks, rating requirements remain unchanged but keep in mind that your 2v2 rating doesn't count anymore in Patch 3.2.

Quote from: Blizzard (Source)The newest season of Arena gear can only be purchased if you meet the requirements with your 3 or 5-player team rating. Rating requirements from 2-player teams can still be used to purchase the previous season of gear.