It's likely very much in certain people's interests to insist that these flights will happen. And they may well launch.
From the previous post it's likely that Cyrus and IAG won't be at the front of the queue to bankroll. And it will be interesting to see how the other named party squares off their participation in the project.
It does look very much like a house of cards waiting to unravel, particularly in the current operating environment, but then again time bought no matter how short will have a value to those directly driving the idea.