Well lets look at it this way. ALPA has been saying that the company is 200-300 pilots over staffed. They also mentioned they are working with the company to help reduce costs while maintaining current (or close to, in my opinion) pilot staffing.
Now the funny part is, below that, ALPA also mentions that they are working hard on the PBS to see if it's worth it. If you read ALL the previous e-mails they have sent, it sounds as if they are somewhat pushing the PBS.
So here is what I think will happen. The company will furlough all pilots outside of the furlough clause (roughly 130ish I believe). Now... ALPA will step in and say you can not furlough anyone inside the clause. As for the low staffing during the summer, ALPA will vote yes on the PBS, giving them the proper staffing. How ALPA looks good in all this is they will say they saved the remaining 70-170 pilots.
Just my thoughts.