Essentially this article is stating that the new iPhone 7 will probably not have any new features that we need to be concerned with. A new OS, which will be available on the 6, and a lack of headphone jack. There is a possibility that there will be a new touch sensitive feature on the home button and better speakers. The Conclusion does admit that there are always surprises.
There is another article about a possible new Apple Watch, but again with the exception of a longer battery life, few improvements to the current model.