Other than saying that Reykjavik (one-time Iceland) is part of
Trans-Polar Aleut, all NAN2 has to say (p.90) is:
Sociologists have commented that the Trans-Polar Aleut Nation seems to comprise two distinct countries. The region between the North American continent and the pole seems largely influenced, politically and socially, by the proximity of other North American nations, and belongs to the NAN. The larger part of the nation, on the other hand, feels no kinship with the other Amerindian nations and disregards anything the NAN or the NAN-aligned portion of its own nation thinks or does. The lines on the map and the country's constitution define the entire polar region as a single nation, but only the segment to the north of the continent thinks and acts like a nation. The remainder consists of an assortment of subtribal groups and small settlements with no cohesion and little sense of national identity.
Target Wastelands adds the following:
- As for Iceland, it's in the middle of an international dispute between the tribal bands on Greenland and the Scandinavian Federation. I would hardly call that "claimed" territory these days. (p.55)
- Greenland (Thule) and Iceland (Thule Protectorate) Stuck between cultures, Iceland is a strange melting pot of Nordic and Inuit customs, Taken over by the T-PA as a protectorate following the Crash and the collapse of its fishing industry, the island nation has hovered between independence and life as a T-PA state for decades. Despite a struggling economy throughout the 2030s, Iceland is now the richest area in the T-PA. Inuit from Greenland who could afford to move have resettled in the northern areas, escaping the ever-harsher weather. At the same time, hundreds of expatriate native Icelanders have returned, either working on the numerous underwater platforms in the region or making a living as independent fisherman now that the industry has recovered. (p.56, three more paragraphs on political/racial factions and their independence politics not copied)
Other than confirming that Reykjavik/Iceland is still not part of the Scandinavian Union,
Shadows of Europe has no further details that I could find.
So most of Iceland is Trans-Polar Aleut in name only, and is probably otherwise unchanged culturally from today.