The Death of Superman is not just the best adaptation of the storyline, it might also be the best DC animated film in years. It should serve as a lesson to whoever is in charge of DC's live-action fare in how to make good movies.
Marvel's latest, Avengers: Infinity War, has more than two dozen spandex-clad superpowered beings in one single film. Before the 21st century, superhero movies were as rare as they are ubiquitous today. It was 1978's Superman that gave birth to the genre.
Whatever happens, it appears that Henry Cavill is still pretty interested in playing Superman. But it would require a capable director to reinvent the character and make him palatable again after the debacle of Justice League.