Wintertooth will relocate their capital to Erengrad if it is retaken.
The Von Carsteins will relocate their capital to Castle Drakenhof if it is retaken.
Clan Angrund and Crooked Moon will relocate their capital to Karak Eight-Peaks if it is retaken.
They can still benefit from 10 slots in racial capitals. They aren't known for building great cities, quite the opposite in fact.
Norsca remains with 6 building slots for each provincial capital.
Unfortunately, this means that provincial capitals and Wood Elf capitals max out their building slots at rank 4 instead of 5. Wood Elf capitals gain 3 slots per main settlement building tier.
Provincial capitals and racial capitals gain 2 slots per main settlement building tier.
12 slots for Wood Elf capitals in Athel Loren.
10 slots for racial capitals (Altdorf, Karak Eight-Peaks, Kislev etc).
8 slots for non-Norscan province capitals, including the Season of Revelation mini-campaign.