I herd the 900 rumor as well. Just the version I herd went like this. Delta's Skywest agreement states that for every 900 they get Delta can park ~2 200s. Delta wants out of 200s. PNCL set it up to loose money on the ATL 900s giving them an easy out. The ATL 900s go to ASA who already has all the authorizations to fly them but parks 40 200s. PNCL in return gets a sweet 200 contract with an acquisition of XJ. Hence the drama mgmt is putting through was decided years ago in an ATL board room and really no need for pilot pay cuts.
That's the rumor I herd, who knows...