What are you talking about? PEK-PHL arrives at 1600....meaning 4pm.....meaning transatlantics rush. See below.
Why are you talking about this? This China thing is so far off in the future that to think they already know what the actual schedule will be and that it is set in stone is ridiculous! And if US can't fine one gate for the China flight in Philly then there is no hope of them being able to solve any of the other thousands of operational nightmares that exist.