The one-day Shuttle trips will be 6-leg, 5-leg, and 4-leg trips that will all have at least 5 hours of hard time per day and longer duty days. There will be Shuttle quick turns with only one deadhead crew per day.
The Crew Pairing Change will occur with the November 14 schedule change and is permanent. The quick turns, triangle patterns, increased aircraft/crew productivity, and elimination of crew hotel/per diem expense will save US Airways millions of dollars per year and has already permitted one Shuttle dedicated aircraft to be redeployed for other mainline flying.
Travelpro72, you're right -- BOS, DCA, & LGA will become more junior.
Moreover, the BOS, DCA, & LGA crew bases are getting larger and I understand the bases will get even more one-day mainline point-to-point flying, which will require even more crews to be based there to realize the economic benefits.
Regards,
USA320Pilot