AS EXVP level sees no current airbus pilot flying a 737 until at the earliest late 2023.... How they do it, I don't know for sure. Will there be a A320 SEA, PDX, or ANC base... I have no clue and I don't think AS management has yet to decide this. If you get hired in the bus you will be on it 5 years, if you get hired into a 737 your sentence is just as long