The only thing that interests me here is the boy
Does he become a new gunslinger after Elba's character dies? Or does the boy just hang around and teach Elba's character and look wide-eyed at everything?
Pretty much the later. Elba's character never dies but he takes the boy back to his universe basically to be tutored by him.
I'm trying to go for an engaging, funny youtube channel so, if you have the time, take a look. Hope you enjoy what you see. Thanks in advance. A review of the movie here-https://youtu.be/rEXvFXvTxto