From the graphic, it looks to me like 5 hour ETOPS isn't so much opening up the North Pole itself, but the vast ocean area south of the pole that goes toward the eastern tip or Russia/western Alaska, e.g. the direct route from London to Fiji.

Current 777 polar routes like SFO-DXB and EWR-HKG don't cross as big of a section of the Arctic Ocean, so were covered by the older ETOPS time limits. The SFO-DXB flight I took went a bit east of the pole, but I believe that was more for wind and actual great circle route over a restriction on flying over the pole (and the moving map wasn't working on the return, so I don't know how close we came. Grrr).

It is confusing, because the article refers to "America's aviation regulators" and "permission to fly twin-jet aircraft over the North Pole", but if I'm correct above, it's not really ex-USA routes or the North Pole itself that are affected, rather the fact that other aviation authorities usually base their regs on the FAA, and that Boeing may benefit.