The recategorisation for Norwegian places is an ongoing process. So far, only Østfold, Akershus, Hedmark, Oppland, and Telemark are finished, with Buskerud currently being worked on. Hopefully, we'll be done before this year's end.
I'll suggest that you just stick to the existing category "Lyngen, Norway" for now. The individual profiles will be moved to the new category "Lyngen, Troms, Norway" when it's due.