It'd probably be rather muted in the "main" universe. After all, there's a working afterlife, with agents (some of whom he knows quite well) to ensure it keeps working. New Avalon has people who ensure that unfinished business gets finished and malevolent phantasms are banished, the dead are often a mere day-pass away, and the gods are even closer.

On the OWaW side, I imagine things are a lot more frayed. The majority of psychopomps probably met their end in whatever left Gungnir lying around to be claimed by the Scarlets, and those who remain are operating without orders and doing the best they can. And on the human side, even though people are pushing back the Neuroi, there are still millions who still lay where they fell, in areas where the inhabitants are hostile to all other known magical creatures.

So I imagine that the majority of this stuff will happen before they go to New Avalon with Gryphon.