This news article is badly written, and doesn't tell to us why this leak is a bad news at all. That fingerprint sensor is in the best possible place, which is the same as in my Nexus 5X and Nexus 6P phones. I'm not a Apple fanboy, I don't own any Apple devices, and I don't think I ever will. Still this stinks like a null information click bait article to me.
TL;DR: Nothing to see here, iPhone 8 might use traditional, best available location for a fingerprint scanner.
As always, especially the notifications description. This site is a click-bait fest.
What I don't understand is how it's clear that no-one takes this site seriously with almost no comments on the click-bait articles, and they still keep using misleading descriptions in the notifications (specially the constant use of "CONFIRMED", come on, do you only care about money from displayed ads whenever we fall for your explosive notification descriptions?
That prototype is an old one. The current design (probably already in production) has a glass back... Not metal!
Also, case makers are using the current design (which does not have a Touch ID on the back) for their new cases. Those new cases, which we've already seen a few of) don't have an opening on the back, further proving that there is no Touch ID on the back of the upcoming iPhone 8.