A new Imagery Transition Basemap is now available as a prototype multi-scale basemap for the world. Designed by Andy Skinner, it's intended to transition into imagery at large scales - zoom in with a design intended to blend into Imagery at large scales.
Open Imagery Transition basemap
The map includes vector tile layers, so you can customize the map to change its content and symbology. The map and associated layers can be found in the Creative Vector Tile Layers and Web Maps group. See the Vector Basemap group for other vector web maps.
For more information, see Imagery Fade-in.