A good number of these knights in shining armour are just assets strippers. Most don't know how airlines work and all they see is three huge pieces of valuable assets, namely, the aircraft. When they find out the airline don't own them, but lease instead, things cool quickly. The moment a leasing company say they want money, they're off like a rocket.
I don't hold much hope of a Silverjet MkII. I feel that staff were given a false hope, its something the administrators have to do, however remote the chance of a sale going through.