Tier 9 is the new set which come with the latest patch 3.2. Like always a set is made of 5 pieces but in opposite to the last tier sets there are 3 different sets this time.

Conqueror's Velen's Raiment

Item Level 232. Bought with 30 or 50 Emblems of Triumph

Velen's Cowl of Conquest
Velen's Robe of Conquest
Velen's Leggings of Conquest
Velen's Shoulderpads of Conquest
Velen's Gloves of Conquest

Triumphant Velen's Raiment

Item Level 245. Bought with 45 or 75 Emblems of Triumph and a Trophy of the Crusade
Velen's Gloves of Triumph
Velen's Cowl of Triumph
Velen's Leggings of Triumph
Velen's Robe of Triumph
Velen's Shoulderpads of Triumph

Totally Triumphant Velen's Raiment

Item Level 258. 25-Man Heroic drops
Velen's Shoulderpads of Triumph
Velen's Robe of Triumph
Velen's Leggings of Triumph
Velen's Cowl of Triumph
Velen's Gloves of Triumph