Well the document the company and the union put out before the latest TA claimed 2022 for someone hired in 2015. But this can go either way. In what the company would like people to believe now, we will shrink for the next year before some growth. Which will cause quick upgrades and fast flow(5 years new hire to flow). That is the unicorns and rainbows version of the future. It's possible but requires everything to go smoothly and probably more concessions(for oprions 42-xx). Others will tell you (see above) that they will cease all flight ops and be a ground handling company. Usually the truth is in the middle.