User blog comment:Golden Bear92/My thoughts on why Zero no Tsukaima needs a 5th season./@comment-32207964-20170605100048/@comment-24053170-20170605215351

Its not going to happen. The Author is dead (and has been dead for several years now), and the light novels have already finished.

Since the anime series was made with the help of the author your never going to see another season with his death.

You might as well accept the facts.