Ability to assign geographic shapes to a dataset.
The ability to create a dataset in a public folder that you can share with other team members, and for a specific geolocation or shape to pull up when they view that dataset. For example, if you want to create and share a dataset for New York City leads, and always have that map view pull up with that dataset.
This would be a great option. All of my sales territories are created by zip codes and many of my representatives cover multiple states but not the entire state, so when trying to create a shape the only way to do this is either select multiple different zip codes with is not ideal, or draw a line where you believe the territory exists. This is more of a guess and not an accurate, clean solution to create a shape that doesn't cover the entire state.
The idea of creating a shape based on information already loaded on the account in Salesforce makes a lot of sense and would be ideal when creating new territories.