I wonder if they will eventually add NFC to it. It probably needs to be certified since NFC is used for payments.

NFC is handled by an NXP chip which is completely different than the Broadcom (wifi, BLE) chip. its a simple, extremely well engineered chip that costs nickels and is passively powered so it doesn't affect battery life at all. No incentives whatsoever to build it in-house. Broadcom and Qualcomm were a whole different story.