It seems like both DFW-AMS and PHL-AMS next July are operated by B788. However, 17 of 37 B788s in the fleet (N870AX thru N886BR) have the newer 789/772 style Super Diamond seats which are all forward-facing, whereas the original deliveries (N800AN thru N819AN) have the older "rocking" Zodiac seats. From what I see both types of 788 are used interchangeably.