Barclays analysts recently reported, that Apple will introduce three new iPads in March of 2017. The iPad Mini 4 will not get a replacement, however. Instead, a new 9.7 inch iPad will be introduced as an entry level device. A new 10.9 inch tablet may turn out to be bezel-less.
http://www.notebookcheck.net/Apple-may-release-three-new-iPads-in-2017-one-of-them-bezel-less.183742.0.html