The tentative itinerary is, well, was at:
However, it appears they're breaking with tradition and holding it on the 3rd Sunday in March. Until now, it's been on the second Sunday for ages.
Stay tuned,
don't buy any plane tickets or prepaid hotel stays yet!
I should find out shortly.
Later: The reply from the Olso Tourist office ....
The World Cup Nordic is what this is about. It appears they've move the biathlon & jumping to separate weekends; the International Ski Federation also has a jumping event on March 11 in Finland.
Wonder how many people will show up on the wrong weekend? The cheap downtown hostel (Anker) is booked solid both weekends.
I'll try to get the base post & website cleaned up this evening.