A site that often has reliable rumours has suggested that the new iPhone will have a brand new home button which will pave the way for future improvements. It will be operated by a series of sensors, and will not actually move. The source of this new rumour is generally spot-on, so it seems we will see the new design later this year.
Apple has already added some of this new technology to its MacBook and it will be the beginnings of 3d touch on the iPhone. In the end it will depend on your touch, and the amount of pressure used, which will allow you to control the computer.
This adds a lot more excitement to the release of the iPhone 7. Other rumors note that there will be new colors available, too. These leaks come from a most reliable source.
News leaked about the new iPhone 7 image source: yahoo.om