Here's what Google Photos, Gmail, Drive, and Trips might look like in Material Design 2.0
Gmail, Drive, Photos, and Google Trips are a couple of the apps that will get new paint in the long run, but so will Google Maps' desktop version. One thing that is common for the redesign is that apps lose their colorful identities and all get a common white theme, that might or mightn't float your boat.
While the pictures look pretty good themselves, it should be stressed that they are merely mock-ups featuring placeholder icons and might not represent the final designs as closely as we'd imagine.
Still, they give us a pretty good idea as to what to expect in the near future, quite possibly near or after the Android P release sometimes next month.
source: Streamable mirror via ArsTechnica
Things that are NOT allowed: