Is Legacy actually going to start up? It had a partnership with a New York Financial Institution and even had planes and livery chosen last time I checked...But heard nothing since.
It doesn't seem like there is much room for any new airlines in the US at the moment anyway, as even the majors are struggling. Every city seems to think they could be a hub, and it just cant happen.
Hopefully airlines do consolidate, and find there feet again in the market, with a good mix or majors and smaller carriers supplying air travel at affordable and sustianable prices.