Last year, early iOS leaks gave us a preview of the eventual iPhone X and some details on Apple's HomePod speaker. Now, 9to5Mac points out an icon in the iOS 12 developer beta that seems to show an iPad design with tiny bezels all around and missing the home button. Separately, code for accessibility features shows evidence of Face ID support in an upcoming iPad Pro likely scheduled for release this fall.
The image doesn't show an iPhone X-like notch, so presumably new iPads would manage to squeeze a TrueDepth camera into the remaining bezel. With iPad sales remaining flat compared to last year, it seems likely that we'll see new devices soon, and now we have some idea at least of what they'll look like.