A new Kalmar Union?

There apparently are some ideas being suggest in an article from Göteborgs Posten, about Norway, Sweden and Denmark forming into a new big Scandinavian country. Don't really see it as happening any time soon but, still an interesting idea none the less.
I mean what from of government would there be? Where would that new capital be located? Sweden would be the default leader in population, GDP, Language, and those desistion maker of the 3 nations.
Would Iceland, Greenland, Estonia, Lithuania, Latvia and Finland want to get in on Scandinavian Union...Would they even be wanted in such a thing was to occurs? The mind boggles.


Göteborgs Posten
http://www.gp.se/nyheter/sverige/stordalens-dr%C3%B6m-sl%C3%A5-ihop-norge-och-sverige-1.1241799

And the Washington post Article I got the found out about it from.
https://www.washingtonpost.com/news/worldviews/wp/2016/05/20/a-billionaire-tycoon-thinks-denmark-norway-and-sweden-should-be-a-single-country/