That's not possible. If you're not following the proper upgrade steps the database will not be converted.
However, there's a feature coming that might be of interest for both you and a few others.
When enabled, changes to the location field in the profile will update/create a map marker. It doesn't go the other way, though. Updating on the map will not update the profile.
And you have the option to import members with a location in the profile, but does not have one in the map. It enabled a task which runs once a day, and import 100 members per go. This is done to keep the number of API calls down. Remember that you only have 15000 API calls pr month.
EDIT: Again, if you have a test install and you want to test this, please send me a message.