It looks like Google just leaked a major new feature of Android P in a blog post. The post, which recaps a security feature, contained a screenshot of the DNS settings with a navigation bar that we hadn't seen before. The explanation from the rumor mill is that this is Android's upcoming iPhone X-style gesture navigation.
9to5Google's Stephen Hall said he's heard from sources that this is "100 percent" Android gesture navigation and that the back button is supposed to hide itself. If you wipe out the back button from this picture and call the pill-shaped home button a gesture indicator, you have something that looks exactly like the iPhone's gesture navigation system. In Google's screenshot, a dialog box is open, so the theory is that in this (in-development, subject-to-change) build of Android, a back button pops up only when a dialog box is open and the button would normally disappear.
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