I'll be taking SAS business class from Stockholm to Chicago in a couple of weeks, so I'll report back then.
As far as their business class cabins are concerned, all but one of SAS's 14 767s were delivered between 1989 and 1992 so they're all around 10 years old now. From memory I think all the seats have all been changed once - they used to be more leather like. How long does a seat last? Because if it's 5 years or so, I expect they'll be changed soon. The entire fleet must consist of less than 1000 intercontinental business class seats.