This is purely speculation but I believe that most of the vacancies for now will be in LAX due to addition of the AA flying based out of LAX (what we know right now).

That being said the most senior base for Captains at this point is MSP and as those folks leave it WILL create openings in MSP. It just remains to be seen how many of us bid back to MSP...

In my situation if I have to choose between 18-19 days off and productive trips as a LAX Captain or Reserve or a 12 day off line in MSP I may have to think hard about my life as a commuter...