The first is the addition of six new legendary gear sets to the game's loot including Unhallowed Essence, Wrath of the Wastes, and Delsere's Magnum Opus.
The upcoming Diablo 3 patch will bring a fair bit of new content to the game. Blizzard has given us our first look at some of the new additions coming with patch 2.2.0 for Diablo 3.