While this is a lovely idea, no in fact it is even more fantyastic than a lovely idea, but I think what's of most importance here is our dear old Tolkien. I can only imagine his dissatisfaction at such a concept that it could never happen. I think fan fiction and other similar avenues should remain sufficient for all of us who like to dwell or travel all the places of Middle-earth. Maybe not quite enough as the real thing, but I refer back to that which in this instance is of most importance and that is Tolkien, without whom the Middle-earth we know and love, would never even exist. I in no way mean this as a criticism of a lovely idea but Tolkien's legacy should remain so.