I think there are too many former regional pilots at CAL now for folks to expect that pilot group to just roll over to management's desires for outsourcing aircraft. Demographics there have shifted quite a bit since Contract 02...and people have seen the "damage" done to Delta and US Airways mainline pilot groups with "large small jets" being outsourced.
Jobs are more important than a few extra dollars an hour...and those small narrowbody jobs would be at risk with 70+ seats at Express.
It'd take a pretty farkin' big carrot for those folks to give up turbojet scope to the size of 175s, IMO.