Did anyone else notice this in Bobok?

While I was reading Bobok, I realised that one of the dead people says that in 3-4 days’ time a feuilletonist and his editor are expected to arrive in graves, basically that they will die and join the dead. I don’t see this talked about much, and it got me thinking of why Dostoevsky would have put that in there.

First of all, an assumption is that the feuilletonist is none other than Ivan himself (this could be false, I agree), but let’s say this is true, then what of the following do you think Dostoevsky could have meant?

Clearly Ivan is hallucinating the entire conversation up, so is he actually going to die? He’s losing his mind, so that’s a possibility. Is this a premonition?

Or maybe he does go to the editor with this story, dead people talking is quite salty, but he and his editor end up dead together due to some misadventures?