Although I don't know much about licensing map images, I think kentsmith9 hit on the main point. If created when you have the license, you don't have to get rid of it as soon as the license expires. If that were true, a game that lost its license (Star Wars, Lord of the Rings, etc.) would have to shut the game down immediately. That isn't the case. Instead, they can continue to have the game running, but they cannot continue to develop more for the game without the license or create new games related to the license.
Still, it wouldn't be a bad idea to slowly start updating the images anyhow. Having current images is better anyhow. And updated full-size images of the WME would now show the street view icon and can include the street view itself when it's useful to display.
Michigan - Northern LP.
Waze running on Samsung Galaxy S3.