Statistically, having everyone survive for the ending is rather unlikely. When you factor in the multiple universes, then you have potentially billions of deaths for every one group in which no one dies.
If you tell us that your update will delete our saves then we wont start new games until you do. And those of us who have played allot might not want to start over. Bottom line is that your losing players right now.
 "Forgotten Dungeon 2"){kind=icon}
 "no-one has to die."){kind=icon}
 "Dungelot"){kind=icon}