Perhaps they are negotiating lowering costs at LTN with a view to expansion at the airport?
Highly unlikely as Wizzair already has a long-term fixed-price contract with LLAO and the 'new' Spanish owners are not, it appears, willing to see any more 'loss leader' arrangements at LTN as the drive is now to maximise the return on their investment at LTN (i.e. the purchase of LLAO from TBI plus funding for any improvements or devlopments).