https://www.cnet.com/news/goodbye-home-button-why-iphone-8-may-be-more-radical-than-we-thought/

To make room for and take full advantage of the iPhone 8's expected near top-to-bottom display, not only will the home button no longer physically exist, there is some reason to believe that it won't exist in a virtual form, either, according to images viewed by Bloomberg News and people familiar with the next flagship iPhone.

Instead of pressing or tapping a home button to return to a main screen or access open apps, those actions will be done with multitouch gestures, Bloomberg reports.