Just came across an interesting article on MSNBC. It basically says that UA's bankruptcy process will be the model DL and NW will try to pursue, calling UA at one point the 'bankruptcy leader.' Some facts they list from UA's bankruptcy:
10 fleet types reduced to 5
UA fleet reduced from 567 to 455
Half of passenger revenue is from international routes
Also, one analyst predicts that NW's bankruptcy will be similar to US's first one, meaning NW should emerge in about 8 months.