That won't happen as long as the system is part of the federal government. The president and Congress are under heavy pressure to reduce borrowing, not increase it. Nor should we rely on raising taxes to pay for an upgrade. As we've seen, that money will not get spent. Instead of tax dollars, these systems rely on user fees.
Passengers still pay for the system through increased fares.
It's to the airline's economic advantage to see that it is. And we've seen similar results in Germany, New Zealand, Latvia, the Czech Republic and South Africa. They can do that because they can hire quickly, pay competitively and immediately respond to changing technology. And to reward success. Just don't expect privatization to happen soon.