Yes. In the manga, Kenshin's fate involves his death. This occurs as part of the story's development and has significant emotional impact on the readers.
In the manga, Kenshin does die. This event has a profound impact on the plot and the characters around him. It's a culmination of various factors and storylines.
The ending of Rurouni Kenshin manga is bittersweet. Kenshin finds some peace after facing his past demons, but there's a sense of closure and reflection.