Well, your bias is obvious, but that's okay.
All labor groups at US are under new contracts with new work rules in line with the rest of the industry. The management has changed, the fleet has changed, many new people have been hired; this is not the same airline. Sorry.
Also, the fleet plan is slated for 435 jets by 2001. That only includes an order of 124 Airbus narrowbodies, and 10 330s. The 733s and 734s and even the F100s are in the fleet plan. It is the 732s, DC9s, and MD80s that were to be replaced by the 120 Airbus.
Strategies are never set in stone. (How many times has Metrojet adapted to a new environment in its 3 years?) If US wanted to set up a new hub, they have favorable options with Airbus to get a slew of planes to fill that hub, and they have the option to slow the retirements of the jets in their fleet to make the hub a reality. So, if they wanted it to, it WOULD be getting 430 new planes on top of the 400 they have now.