We wouldn't bet on a launch when Apple is known to occasionally change its mind (or face delays) at the last minute. However, the payment tech would certainly make sense in light of many rumors that Apple is finally incorporating NFC into its devices. While you can use NFC for accessory pairing and local file transfers, it's more of a nice-to-have feature in those areas. It's more important when you're shopping, since tapping a payment terminal is typically easier and more secure than sending your banking details over Bluetooth or WiFi.
source: engadget.com by Jon Fingas