For a 7 hour journey to Copenhagen you must be living in Skagen.

> completely disconnecting the rest of the country

If there's some secret plan to demolish the bridges to Fyn and rip up the roads and railway tracks on Jutland do inform us.

Otherwise, the Århus to Hamburg train will continue to exist.

> It's a multi-day journey with a layover within the country if I want to leave by rail.

No, it isn't.

Skagen to Flensburg is 7 hours? It’s a painful number of connections, sure, but hardly multi-day. Even going on to Hamburg only adds another couple of hours onto the journey.