Narnia Revisited

Jinx found a BBC article which refers to Harper Collins' plan to rewrite the Chonicles of Narnia in order to remove the Christian message. Although this article is from 2001 and does not refer directly to the film currently in production, it does show that those who hold the publishing rights to the books are open to the idea of eliminating Christ from a story which is an allegory of His life. I wonder if Harper Collins also intends to rewrite "Mere Christianity" in order to reach a wider audience?