Flew back to the US last night and encountered another change at Global Entry. JFK. Terminal 8.
Walk up to machine, have your photograph taken and then told to proceed to agent. No paper slips. When you see the agent, hand over your passport. They compare it to a set of images on their computer screen. I was asked if I had anything to declare, I said no and was done.
The arrivals hall was packed with only a handful of agents. Global Entry and Mobile Passport were given priority and some on the regular line were not happy.