In the Marvel movies, death has not always been permanent. Before he really died in Avengers: Infinity War, Loki had faked his death twice by that point, and now, thanks to time travel shenanigans, he might not even be dead anymore. However, the fickle life and death of superheroes isn’t just a movie thing. It originates from the comics, which often kill superheroes for publicity and bring them back down the road. Marvel Comics Editor in Chief C.B. Cebulski hopes to change all of that.
Article source: https://www.cinemablend.com/news/2474260/marvel-comics-wont-kill-off-characters-for-shock-value-anymore-chief-says