This sounds a little strange, I admit, but here goes.

I'm wondering if there is some sort of functionality in our software packages that will take a single instrument audio file and create a MIDI file based on whit it thinks is going on?

My specific use for such functionality would be to take a real track bass audio file and make a MIDI file based on what it does. I would export the MIDI file for use in another application and expand, aim it towards specific VI basses, etc, etc. I do this already using real drums in RB. I simply convert an empty track to MIDI, right click -> Generate MIDI Track -> Drums, and I've got an instant drum MIDI track. I can't do this using the Bass option. It states that because there's no MIDI bass in the style, it could not be created. Makes sense to me.