Wideroe was to have moved the service to SEN from March 2020. They actually announced and launched SEN-BGO in 2020 but after only a couple of flights Norway imposed entry restrictions again so it was abandoned. They also had a load of slots at LCY but for now are going into LHR.
SEN remains in their system (or at least it did a few weeks ago) with nothing on sale. No idea if KRS will return for 2023, and if it does where it will go.