A tweet from Bethesda Games Studios has confirmed that Fallout 4’s survival mode will be getting a lot more intense.
We’re also doing a complete overhaul of Fallout 4 Survival mode. Food, sleep, diseases, danger and more. Stay tuned.
— BethesdaGameStudios (@BethesdaStudios) February 11, 2016
The tweet also mentions danger, so perhaps some new enemy types are coming as well. It would do Fallout 4 well to add some new content and longtime fans of the series will surely appreciate a proper survival mode. The full details on the next patch are yet to come.