Just because iPhone 5S has a fingerprint sensor doesn't mean that the iPad 5 and iPad mini 2 are guaranteed to contain the new technology too.
Siri, for example, launched with the iPhone 4S five months before the iPad 3, where Apple's voice-controlled personal assistant was noticeably absent.
It wasn't until the iPad 4 unveiling later that year that Apple made Siri available for its 3rd and 4th generation tablets.
Likewise, the iPad 2 came out six months after the iPhone 4, but the newer tablet didn't contain a Retina display. iPad 3 finally upgraded the hardware one year later, which was 18 months after it first premiered on the smartphone.
Whether or not a Touch ID fingerprint scanner is ready for Apple's next set of tablets remains to be seen.
But the more that leaked photos pop up on the internet, the better it looks for future iPad owners and the worse it looks for device-snatching thieves.