Don't know if it just arrived this week or I've been missing it but there is now an awoken corsair standing just outside the Blind Well and she scolds the guardians for rushing in and activating something we don't understand. She says it opens rifts to other worlds and that it was calibrated during the Taken War and has no idea where it leads. Very interesting and exciting. This dreaming city story thats unfolding is the best thing Bungie has done since Halo