http://forum.square-enix.com/ffxiv/threads/50524-Live-7th-Umbral-Era-world-changes-of-1.23-%28a-surprise-inside%29

Posted some screenshots of front page, but for more of this stuff check out this thread. There are stones scattered around the world, one for each guardian. i imagine these will play a role next patch with those guardian rings in the dats.