After two years of extremely changeable schedules due to Covid-19 and the resurgence in travel, SAS seems to be pretty confident about the winter and also summer schedules (which were loaded and publicised a few weeks before Christmas).

Also, in my limited experience, most of the medium- or short-term scheduled changes I experienced over the last two years related to either a change of equipment or a change of the operating airline: SAS Scandinavia ("mainline") to SAS Connect to Xfly to CityJet or some other combination of the above. On domestic Swedish runs the change from Airbus to CRJ equipment had the largest effect. The dumbest schedule change was the cancellation of an Xfly operated segment FRA-ARN which lead initially to SAS proposing an alternative flight four days earlier.

In your case, SK907/908, only SAS Scandinavia ("mainline") can possibly operate the trans-Atlantic flights, so the chance of a change of equipment or operating airline is non-existent.

Best to explore the options for rescheduling it to some future date. Or finding someone with exactly the same name as you who wants a short notice trip to New York.