Wat happened to Eris after she died ⁉️

[[[HEAVY SPOILERS]]]

Can someone please tell me what happened after Eris’s death? Yeah, I know she was 74, and that after training she passed away peacefully in her sleep.

1. I want to know how people reacted [specially Rudy]. (I mean, that’s kind of obvious, but still.)
2. Sylphy and Roxy told Rudeus that Eris would be waiting for him… so what actually happens to him after that?
3. Is there some sort of afterlife for Eris? Or her existence also become nothingness/ fades...

From what I understand about Jobless Reincarnation’s world, a soul either turns into mana or gets reincarnated into a new body without memories. Rudeus was from another world, but I’d argue it was more like he took the place of Zenith and Paul’s baby—since that baby was already going to die—rather than being truly “summoned.” So will Rudeus meet Eris, Zenith, and Paul again in an afterlife, or he will just disappear and his mana will be added into the world? Or this is only happen to him because he was from another world ?

AND ONE MORE THING In Rudeus's final dream in Mushoku Tensei, he witnesses Hitogami defeated and sealed by a group of individuals, including Orsted, his daughter Lara, and a person resembling Shinohara Akito. Was that dream or Future ⁉️

Please tell let me know I would be eternally grateful 🙏