I'm working on a complete text dump of Might & Magic. I've found some interesting things, but nothing too earth-shattering. Of course, finding an unused final boss is pretty difficult to top.

I think there are some unused status ailments, like Afraid, Held, Stuck, and Silence. I can't remember if it's possible to be silenced in this game or not (I don't recall it ever happening, but maybe I've just forgotten it), but none of those others are used, I'm pretty sure. And thus, I'm probably right about P-FEAR not doing jack squat because it would have been to protect against the Afraid status, which I'm quite sure is unused.

Also, either there are a lot of unused tavern clues, or there are a bunch I've never gotten anyone to say to me, including three about the Magic Square in the Hawkseye dungeon. One of them even completely gives away the answer.