File descriptions say this LFG tool will support filters for dungeons, Fractals, Living Story quests, ranked and unranked PvP and World vs. World. DAT files also reveal... swimwear.
Then there's a 'back-to-school' clothes set and dragon mask. A item gifting system is also given mention, along with details on the planned Skyhammer PvP map.
A full data mining report of the DAT files is. These files came from the recent Last Stand at Southsun content update. Data mining occurs with increasing frequency these days, meaning developers have to be mindful of what they leave in. Many a surprise has been pre-empted by nosey types.