Papillon - liquidators. Belgian commercial law doesn't have an equivalent of UK Administration or US Chapter 11 - what SN is in at present is as close as it gets.
They have already tried to asset strip SN by transferring over route licences, slots etc to DAT - not too sure how legal that is though bearing in mind that (a) they could be seen as assets and (b) are not supposed to be transferrable.
I understand the decision to close will be taken at 2100 local/2000Z.