Not confirmed.
It says in the read that just because the code is there, does not mean it will be implemented in the upcoming hardware. Its still a maybe..
http://news.cnet.com/8301-13579_3-5...-button-scanner-spotted-in-latest-ios-7-beta/
"It's worth pointing out that code inside unreleased versions of Apple's code
does not always mean the feature might come immediately. Lines of code for a panorama feature were spotted as far back as 2011, though didn't make it into Apple's iOS software until iOS 6 in late 2012. In this case, Apple's next iPhones are expected to be just a few months away, making this discovery more curious."