When is Apple fitness+ launching in Norway?

Apple has not disclosed any launch dates for features and services. They rarely do before they actually release them, so your guess is as good as ours.

Check the following document regularly for updates.

click here ➜ Availability of Apple Media Services - Apple Support

currently it's only avaliable in

 Australia, Austria, Brazil, Canada, Colombia, France, Germany, Indonesia, Ireland, Italy, Malaysia, Mexico, New Zealand, Portugal, Russia, Saudi Arabia, Spain, Switzerland, the UAE, the UK, and the US

you can try to suggest they add norway ASAP by using

Feedback - Apple Fitness Plus - Apple