No real news in that Reuters article - only a couple of facts that is outdated by let's say 6 months. Norwegian has now 68 Boeing 737s - 11x B733 and 57x B738. At the year end one more of B733 will be leaving the fleet, while this year's last B738 delivery isn't far away. The net growth next year will be 10x B738 + 3x B788 according to what is said in the Norwegian Q3-12 presentation.
SAS on the other hand seems to get in 3x around 12 year old B737, 1x factory new B738 and 3x A320 (2x 12 year old aircraft that flew for Spanair + 1x 6 year old) at the end of this year (provided they still stay afloat the coming Monday).