There seem to be two different problems to think about: the past and the future.
The past can be described as a "path" or a "chain" that brought you to the point you are. The key goal here is to make the path visual as a way of reducing cognitive overhead or providing a kind of a record.
The future is the potential. It's guided by goals, perhaps, or by the content on the page. Where can I go next? How do I figure out where I want to go next? It seems to me this is often somewhat unconsidered, so there's an element of exporability; what is it that catches your eye?