As global warming (click here) melts sea ice across the Arctic, shipping routes once thought impossible — including directly over the North Pole — may open up by midcentury. But high costs may keep the new routes from being used right away.
There is a lot of water turbulence in the Arctic Ocean. I don't really see a Super Panamax doing well. There will be a lot of free floating tennis shoes for those with that inclination.
But, the loss of life when ships lose their buoyancy as cargo slips and shifts will bring the world to a different resolve than today. That is the way of the world, learn the hard way, ie: global warming. Capitalism. It has no restraint, only greed to be tamed with reality.