An unidentified corporate entity filed to make AirBerlin subsidiary Niki bankrupt today. If the Austrian court grants the claim, Niki will loose it operators liscence and its slots, making the airline worthless.
If that happens all of the bids to rescue AirBerlin will be in jeopardy, never mind those to peel off Niki as a separate functional business.
This could be a tactical move but those unhappy with the process (RyanAir comes to mind), may be ‘salting the well’ to make sure nobody else gets any benefits. It may also be a move to force others to take a different approach and include those who feel left out.