This bug is out of the box.
It was out of the box among poultry several months ago. There's not the slightest doubt that it will become widespread throughout the eastern hemisphere.
It's probably only a matter of time before it comes to the Americas, although the ocean is quite helpful. Chickens and turkeys, or even ducks, are unlikely to make the flight by themselves.
As long as the virus remains largely contagious only within the poultry population, it's only an economic disaster.
When it becomes contagious within the human population, then it's truly out of the box.
I saw a show yesterday on cock fighting and the fear that it would be a real easy way to get it into the US....