One thing you can absolutely guarantee, without any doubt is that the 3 Amigos wouldn't have ponied up any cash if they didn't see a large return on their investment at some point in the future.
Now whether it's because Airways is a bit strapped and they want to make sure they can keep banking the profits we make them, flying for Airways or because they'll make a financial killing on this investment, is anyone's guess.
Afterall, they made back their initial $125 Million, plus another $300 Million, or there abouts.