I wouldn't say updated, but they do play a role.
The spirits of Denver are covered in the book. I am disappointed one of the more all-out amusing ideas didn't make it in, though.
Zebulon broke into 6 or more spirits, more then likely one facet of his personality for each sector. Four were named and described (I really like the here's 4 possible backgrounds , pick one system in Denver).
Grey Sky-
Force7 / Pueblo Sector Trickster or Shadow who enjoys messing with border security.
Night-
Force 8 / UCAS Sector Enjoys pain and suffering connected to BTL's and/or racial violence.
Smoke-
Force 8 / Sioux Sector Hiding as an ally spirit of an influential cat shaman.
Rojo-
Force 9 / Aztlan Sector Directly involved in sector politics for the good or ill of the people.
Did Rojo survive the fall of "his" sector? Is Ghostwalker aware of the fractured nature of the spirits? Is he doing anything to "repair" him?