Negan does not die.
.....and Daryl does not exist.
How do you know Neegan won’t die? Comic books? Please don’t say because of the comic books. Maybe Neegan won’t die , maybe he will. But the best thing the writers of the show could do is to toss the comic books in the trash and forget them. A lot of what is in them is silly. And does not translate well to live action. Too much reverence for the source material, when the source material is a comic book, ruins almost every live-action film and TV show that is comic based.