In short, there is the following list of features to spot:
- neural networks for better positionning;
- easy way of scanning places by walking in straight lines;
- map rotation according to user's current bearing;
- a kind of "augmented reality" with photos and videos;
Other directions look more predictable but may require a lot of routine work.
There are yet another points in my "to do" list, but they are "secret" ;-), because they are both promising and tricky at the same time (that is they may or may not bring a value), so I don't want to deceive anyone.