I have the drone follow me on my bike so Return to Home is not usable.  How about another option:  Return to Controller.

Have the drone return to the coordinates of the remote controller.

This would also be great for anyone using the drone on a boat.

You can update the home point to that of the controller in the fly app.

Yes, but I am traveling on my bike or if I'm on a boat, I would like the app to do it automatically.  Ideally, it would only need to do it when the drone was about to RTH, but it could do it once a minute or every 5 minutes.

That would be a very useful feature.