As part of a desktop update to Google Maps, version 7.3 of Google Maps for Android has been rolled out. The update includes new notifications for Android phones running Android 4.1 or higher. In the expanded notifications window you will now find out where to turn next, ETA (that is first responder talk for estimated time of arrival), and how much distance remains until you reach your destination. The information isn't new, but the presentation is thanks to the expanded navigation window.
There are some other minor changes including smoother scrolling, and smaller cards. You are now prompted to see if you want to discard a review without saving it. Too many Google Maps users apparently have hit the back button by mistake. As usual, an update to an app like this, with so many users, is not going to happen with the snap of a finger, Keep checking the Google Play Store to see if your Google Maps for Android update is ready to be downloaded.