New image from their Facebook:
Husk: Torsdag kl. 12 offentliggør vi Danmarks største nyhed 2013!
Her får I lige en forsmag. Hvad kan det mon være?
(Remember: We will announce the biggest new 2013 attraction in Denmark at 12PM! Here's a preview. What could it be?)
Definitely looks like an ATV themed moto-coaster to me.