In the Google blog you can see the new logos will/have implemented for their different services.
The idea with this update is to get similar logos for all services and the first services to get updated logos are maps, news and docs. Over the next few weeks more services will get updated logos too.

To the left you see the english names and to the right some local examples.
Google writes:
Since the logos appear in many different locations and sizes on our websites, our new designs are standardized to be the same size and color wherever they appear.
I like the idea that they will have the same style on all logos. What do you think?