From GameWatcher: “Dying Light 2 is going to be big. Let us rephrase that: Dying Light 2 is going to be massive, and if you were wondering how it would compare to the original Dying Light, the answer is: favourably.
In a recent interview, developers have revealed that Dying Light 2 map size will be four times the size of its predecessor. Those who’ve played the original will know that this means we’re in for a positively humongous game this time around.”
Source: N4G PC Dying Light 2 Map Size – Is it bigger than Dying Light?