It seems that this is rather less than what Delta was hoping for.

I don't see any other large airlines in danger, but Independence Air is very weak financially.

Basically time is running out. They have a whole series of deadlines coming up in September. The problem is would US Airways be able to attract financing to emerge from bankruptcy again, even with a new round of labor concessions?

Whether or not it could be profitable is hard to say.

Their operations showed an improvement on last year. They're still facing the same challenges as other airlines, namely high fuel prices and improving but still competitive pricing in the domestic market.