Lufthansa always had a plan B, which is going through the german chapter 11 process (Planinsolvenz in Eigenverwaltung). That would allow them to get the pension pots and there is more than enough money in that pot to weather this storm. An additional bonus would be of course that they could finally get some real concessions from their unions. Will be quite interesting to see that unfold.
Even more interesting is however that france, netherlands and germany are quite willing to give their aviation sectors huge bailouts, while apparently the UK is not. Putting all UK airlines at a distinct disatvantage.