At Air Transports World's website, (www.atwonline.com), indicates that SAS will move to a single class service for flights within Scandinavia (international & doemstic) and *not* flights to Europe. Shareholder...not sure where you heard that Europe flights would also be single class.
The new product will be called Scandinavian Direct.
Depending on how the product is accepted it *may* be extended to European flights.
Cheers