CPP %
Nobody seems to know. Even the union apparently doesn't have any info. The company claims to have a number but they don't seem inclined to share at this time.
Attrition seems to hover around 10 per month without the CPP. Even assuming the CPP only took 5 per month that's 15 per month total attrition. There are currently 500 pilots on property. Assume 20% of those pilots don't want to move on. That puts a new hire today at the front of the CPP line in 24 months. Lots of assumptions here but I don't think they are unrealistic.
Another thing to consider: staffing targets are 800 pilots total and AW is going to hire aggressively to meet that. Use the same math above and anyone hired today will be better than 50% up the seniority list in 12 months IF they can keep newhire classes relatively full.
TLDR: It's a great time to get hired at AW.