The only hint would be that Infratil, when publishing the cosmos statment, commented on how they were in talks with several "established" european airlines
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That would be all i could guess at the moment. They want 500,000-600,00 pax within 3 years. In this cae something is happening soon
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P.S - DAS HAVE BEEN GRANTED THERE EU OP. LICENSE AGAIN!! GD LUCK TO THEM>