In reply to lex:
Romsdal, Hemsedal, Innerdalen, and Nissedal are all worth considering for multipitch trad. Kvaløya you might need to check the snow situation on the higher crags. I know there was still too much snow the other week. Stetind an option as you say. Uskedalen another excellent multipitch option. Again you might need to check on the snow as the West gets more snow during winter. Probably ok by a couple of weeks. Bohuslän only a few hours from Oslo and world class crack climbing. Jotunheimen has loads of long, technically easy ridges, although there will still be snow around. Typically lots of scrambling with a few pitches of actual climbing.
I live in Oslo and currently taking a break from work. I'd be up for something like Nissedal and neighbouring Fyresdal if you could get yourself to Oslo first. We could take my car, although I'm not able to drive at the moment (headaches rather driving offences!). Leading around HVS/E1 currently so in the same ballpark.