Blizzard has posted an official preview of the Human and Orc Heritage Armor Sets coming to the game in Patch 10.0.7.
(Source)
Embrace your legacy with two new Heritage Armor sets—one for orcs and one for humans—coming with the release of the 10.0.7 content update.
Human: An Urgent Matter
The Defias Brotherhood is up to their thieving ways once more and have stolen a dangerous and powerful artifact from Stormwind Keep! You’ll undertake the quest, “An Urgent Matter” from Master Matthias Shaw where you’ll aid him and an unlikely ally to uncover a mystery deeply rooted in Stormwind’s shadowy past and stop the forces that march on Northshire… and threaten Stormwind itself.
This new quest is available for players level 50 and up to undertake and gain several variations of the new human Heritage Armor to add to their collection.
Orc: A People in Need of Healing
Help Eitrigg bring back the Kosh’harg festival from old Draenor and prove yourself a true champion of your people. Orcs who undertake the quest “A People in Need of Healing” will need to earn the Blessing of the Clan, the Blessing of the Land, and the Blessing of the Ancestors to complete the om’gora or “rite of honor” before the assembled clans and many familiar faces.
This new quest is available for players level 50 and up to undertake and gain several variations of the new orc Heritage Armor to add to their collection.
Begin your journey by speaking to Master Matthias Shaw in Stormwind or Eitrigg in Orgrimmar with the release of the 10.0.7 content update.
