House of Wolves will not have a Raid activity. We didn't make this decision lightly. Our team has been humbled by the reception of Raids in Destiny and we are creating a new Raid for a release later this year. House of Wolves will have a new cooperative end game activity focused on variety, replayability, and skill – a new battle Arena called The Prison of Elders. While they could easily spin it to say they meant TTK's Raid, the general gist of it was that they were making another one because of the lack of a Raid in HoW.