Go inside a city market ward, enter inside hall of flames-the maelstrom-adder's something
do the quest the dude give to you
then do imperial devices and into the dark. They are the quests for the new dungeons. Then you can go shout to uldah for dungeons or wait in front of the entrace to find a party, otherwise if you got a linkshell you can ask there.
That's the new content you looking for now '-'