A question related to a longer-lasting unified Scandinavia

How a longer-lasting unified Scandinavian nation-state would affect the linguistic development of the peninsula, specifically the Germanic languages spoken there (OTL Danish, Norwegian, Swedish languages)?
 
How a longer-lasting unified Scandinavian nation-state would affect the linguistic development of the peninsula, specifically the Germanic languages spoken there (OTL Danish, Norwegian, Swedish languages)?

I assume it depends on whether they get a common written standard language.
 
If you talk about Kalmar Union, there is very big change that Danish, Norweigian and Swedish are just dialects of same language. Even OTL modern days the languages are pretty intelligeble. But probably there will appear on some point common standarised written language.
 
Top