Not that I am aware of, but it is a very interesting idea though.... would be very handy for those people who were seriously thinking about their learning path, and for any organization who really needed to track their students\trainees pathways.
Check the current plugins... and if you can find nothing that meets your need, then perhaps you could create a Moodle Tracker item about it, or if there is something similar to what you need, but not on the money, perhaps you could modify it, if you know PHP/Javascript, or get someone to modify it who does have those skills. The second place to go after the plugins would be the General Developer Forum, if you could do it yourself. For a project like this, I would think you would likely garnish a lot of support. It is a great idea...