Wouldn't this make more sense to add a brand new difficulty mode rather than redesign survival mode? For example just name this hardcoe mode like in new vegas and leave survival as is with the legendary enemies being more frequent with us doing less damage while hardcoe Mode is more akin to Normal mode with all the stuff from NV had(eating, sleeping...etc).
What i'm not happy about is the disease thing. There has never been diseases present in fallout games EVER. This isn't skyrim, don't add this stuff in now
So this means our character is going to get cancer in the game, dies from this disease and game over and you cannot continue with that save file anymore? That's how I'm envisioning this and it's nonsense.