Snapedom

Oh, just one more thing. Susan is not finally excluded from Narnia, because she's alive. All the rest of her family are dead. She has plenty of time to find Narnia again, if she chooses. But it's her choice.

Re: the Calormenes. They are quite clearly based on the Moors - but most Narnians are animals, actually! People of any kind are a minority. And we are shown Aravis and Emeth, and therefore see that Calormenes are as good as Narnians. In short - to Lewis, choice matters. What you do matters. To Rowling, it doesn't. If you are one of the elect, you can do whatever you like. If you aren't, nothing you can do will save you.

And I'd like to reiterate what Oryx said so clearly. What do you mean when you say Snape is redeemed? Is he accepted by his society; considered a hero, perhaps? If this is what you mean, there is no evidence in the text, since little Al has never even heard of him.

Is he a good person, basically, working his slow and painful way toward virtue and having repented his sins? Yes, he is. You and I both see that. But -

Is he redeemed in the afterlife? No. We are never shown any such thing.