Certain parts of the Collective hasn’t been updated since The Taken King came out. The timeline says nothing of Rise of Iron or the Age of Triumph, and many summaries of major categories are incomplete – i.e. Dredgen Yor. I understand that it is site coding and not like a conventional wikia, but its been roughly a year and a half since those bios were updated.
Hopefully an update will be soon, especially with D2 on the horizon. Wouldn’t want to confuse newcomers now, wouldn’t we?