A major DLC is about to be released for Dying Light, this introduces new elements to the game such as vehicles and the size of the new map is supposed to be as least as big as the original two areas put together!
The video below shows some of the new dlc.
Added new community created maps
Various stability improvements, including co-op
Fixed quarantine zones not being playable more than once
Removed common duplication exploits
Minor tweaks and fixes improving the game
Added NVIDIA Percentage Closer Soft Shadows (PCSS)
Dying Light: The Following fixes:
Fixed quest progression issues in certain situations
Balance and progression tweaks