It looks that way. There are no services requiring the SOU-based aircraft from January 11th onwards. Sounds as though three J41s are heading for Jonkoping, one of which will be a standby aircraft with the other two operating two flights a day to Copenhagen and three flights a day to Stockholm Bromma from 1 February.
Aberdeen-Oslo no longer bookable from mid Jan, ABZ-Bergen cut back and NCL-SOU down to one flight per day at pretty awful timings.