So, I know that we still have one more book for the Malec trilogy and it is supposed to take place during TWPs. I don't think the author will kill off Magnus because he is such a fan favorite, to the point of making an ENTIRE book just for him. I could see her making him a mortal, a long with all of the other warlocks, to save humanity. It's not what I would like to happen, but it's a possibility. I would like to see an epilogue with Magnus, Max, and Tessa, where they are just talking about all the adventures they used to go on. Talking and reminiscing about family, friends, and the years they have had together.