I originally thought the ads arrow circle button would be blue, but it comes in all shades of colors.
As illustrated before, the ads are also not static. As Google said, the ads offer the user to interact with them on mouse over, which expands the ad units.
Here is a video of that in action:
Here is a picture of the new ad format explained:
Overall, there is a positive reaction to the CTR and earnings on these ads, for now...