Along with several fixes for general issues, there is a familiar face returning to the tower -
Petra Venj, the Queens Emmisary
She has returned, back to the end of the event area above the vanguard's hall, bearing bounties and a couple of shaders and emblems.
It would appear that the bounties were planned to unlock 1 per day until the day of release, although what with the aforementioned delay today there are three of them unlocked!
They are kill target bounties for enemies specific to the House of Wolves. It would appear that each of these targets appear much in the same way as Swords of Crota from The Dark Below update.
For the full details on what was included in this update (some of which has not gone totally live yet) visit :
www.Bungie.net