Enjoy your trip.
I am just packing for my overnight in Narvik (interestingly, current temperature way up there over the Arctic Circle is higher than over here in The Hague) and just checked the train for tomorrow only to be met with the super annoying "alternative travel" notice. Now I have until tomorrow morning to figure out if I'll take the rail replacement bus, regular intercity bus to Leiden and then the train, metro to Rotterdam and then the ICD, or drive and park... somewhere. Ugh.