Unfortunately, I think we'll see a lot of Polar pilots departing because the 747-100's and some/most of its 747-200's are superfluous - Atlas already had the intention of reducing its own 747-200 fleet because of the aircraft's more-limited range capability.
If I were a Polar pilot, I'd be looking at Jetblue (fast-growing and profitable A320 operator out of JFK and soon Long Beach). Jetblue could potentially be the next Southwest and cover the US. Plus, those A320s are a lot nicer to fly than junky 747-100s...
Good luck to all pilots involved!