I read somewhere within the last couple of days that they still haven't got all their financing in place. NOT a good sign. Personally I would think the chances of NOW getting airborne are about 10%.
Been there with attempted start-ups and the money is the thing that kills you. Lots of interest, lots of positive words, but in the end considerable reluctance by most potential investors to part with their money ... and who can blame them. The track record of investments in the airline business is hardly a good one.