if the ghosts can posses their other voice human halves (is there a correct word for that?) would some of the people die differently, if at all? I mean, would the survivors/victims/killers be different if the ghosts change anything?
We’ve come to agree on calling them ‘possessors’ for the ghosts and ‘afflicted’ for those alive, but ‘spirits’ and ‘haunted’ could work too, whatever is easier for ya.
As for the other question, that’s tough to say...Tsumugi, being the game master and knowing of all the phantoms’ existence, would hold a peculiar rule for Monokuma to enforce, one that keeps the spirits at bay from trying to completely rewrite the game's future, much to their dismay. The only person who could probably really influence a death to the point of complete alteration like that would be Izuru, as he always seems to know more than he lets on, but he's more of a silent observer than anything, and even as powerful as he is, can't constantly save people willy-nilly.All-in-all, it is possible for their deaths to be slightly altered in some way due to the ghost’s influence, but everyone who dies will still die, there’s really no way to get around it.