Google might add 3D-like features to Android
After Apple introduced 3D-Touch, other companies tried to copy this feature. For example, there were 3D Touch-like feature on the Huawei P9 and Meizu Pro 6, and it looks like Google is also working to bring 3D Touch-like features to the Android.
It is one of the new features that is discovered with the second Android N Preview. As you slide down an icon ( not pressing it ), you can see more information related to that application.