When you first arrive at the new zone, the Isle of Quel'danas, in patch 2.4, you'll find a chaotic scene, even if there aren't hundreds of naked, level two Blood Elves running around getting slaughtered by level seventy creatures, as there are on the PTR. The Shattered Sun Offensive, the united group of Scryers and Aldor, have a small presence on the isle, consisting of a few tents and a boat, and they're combating a large group of demons and Blood Elves. As time goes on and more daily quests are completed, the new faction will gradually retake buildings on the isle, unlocking vendors, quest givers and a portal to Shattrath. Here's a quick run down of the quests and NPCs involved in the first phase of the offensive, which came to a close a couple of days ago on the US PvE PTR.
The first building that is retaken is the Sun's Reach Sanctum, pictured above. It's infested with Wretched, the undead-looking, lowest form of Blood Elves and it's security measures are non-functioning. This of course leads to our first daily quest, "The Sanctum Wards". In this quest, you must obtain four Mana Remnants from the Wretched and then use them on one of the large red crystals near the Sanctum to help recharge them. The crystals are wards that, when recharged, begin to zap nearby baddies with magic. Basically, you need to kill a few Wretched (the drop rate of the quest items is pretty high) and then click on the items in your bag while standing near a crystal. This quest was quick and easy to complete even with a lot of competition from other players.