I highly doubt the side power button finger print sensor. Not only would it be highly unlikely to work properly because of how thin it would be (if at all possible to make currently), Apple never really invents much of anything. They just repackage things into a pretty looking device. Every launch there are tons of outrageous "leaks" and like 95%-98% turn out to be false. Thanks for the article, though. The on screen sensor and the behind the phone sensor designs have already been proven to work by other companies, so it'll probably be one of those if anything.