Google rumored to have new launcher for Nexus handsets running Nougat
There is a revised search bar on the top of the drawer. Outside of that, the drawer resembles the current app drawer. On the home screen, the Google Search app has been replaced with a calendar widget which is opposite what appears to be a "G pull-tab." Pulling the tab won't do anything, but tapping on it will launch Google Search. New navigation buttons should be included with the new launcher.
It is expected that the new launcher will be offered to Nexus models running Android N. Keep in mind that this is far from the final version. Google will have to deal with the fallout created by removing the app drawer icon and replacing the Google Search bar widget with the calendar widget. Let's call this a work in progress and hopefully we will get to see how the new launcher progresses before the new Nexus models roll out.