Possibly in response to Norwegians recent ad for pilots.
Most RHS on this fleet are Scandwegian, and most harbour some desire to work for Rudi the Red Nose, so, anticipation of losing potentially a few bods between now and Spring I would imagine.
Or perhaps just anticipating the empty RHS 's on the 737's if the Q400's ever arrive and many RHS737 bec LHSQ400 ?
Having let 3 737's go at end of Oct, I doubt it is planned fleet expansion, although vested interest would make me very pleased to hear otherwise