With rumors for next iPhone6 with new iOS 7 is already out, I think the next iPhone will definitely have NFC.
Here are the reasons:
– iPhone 5 is using BCM4334 for Wifi + Bluetooth.
– Back in Dec 2012, Broadcom announced BCM43341 NFC combo chip (BCM43341 is BCM4334 + NFC chip). It’s no brainer for Apple to put the new chip in since it has the same size.
– NFC chip requires NFC stack, it’s significant software change. Thus, iOS 7 is needed.
– Broadcom BCM43341 NFC combo chip:
– Broadcom BCM4334 in iPhone 5:
– iPhone 6 & iOS 7 rumor: