This is more of a question than a response, because frankly, I don't know. But like everyone else, I can speculate what selling the 190's will do for USAirways...
Actually, I don't think that they/we are selling them to Republic. Could the tranfer of these 190's to Republic be a means to satisfy two problems the company has. One, it could satisfy the RJ grievance by terminating the contract that USAirways has with Republic and two, also satisfy a $250 mil loan that USAirways has with them.
Let's face it, if there is one thing that both Parker, and his talking head, Kirby say every time they get on their soapbox, it's consolidation. They care less about the problems that the two pilot groups have than they do trying to get the financial community to buy off on a deal whether it is with Continental(my guess), American or United.
I also believe the remaining 190's won't be here much longer either.
Just my thoughts out loud!