iPhone 5S latest news are unfortunately not very good, because Reuters announced that Apple has returned to Foxconn over 8 million units of iPhone 5S.
iOS 7 version will not be just a slightly better version of 6.1.4 iOS, but it will probably have great updates, features and fixes of previous issues.
iPhone 5S will most likely have the same size as the iPhone 5, but it will definitely have a better camera and probably a slightly faster processor. Read More
The first image of iPhone 5S that leaked, was taken in a production line, which make it more believable that this is how iPhone 5S will actually look like.