Google is always adding something new to Maps, but not everyone gets the new stuff at the same time. Right now, it looks like Google has added a nifty travel time graph to directions so you'll know how much traffic there will be. This appears to be one of the rare instances where a new feature was quietly rolled out to all users in the space of a few weeks.
You'll see the new graph at the top of the directions when you select a destination in Maps.Read More
Google Maps has started showing a travel time graph for directions was written by the awesome team at Android Police.