Proof of some form of nonmini very hard chest (Had to make a new post to upload the pic) : r/dyinglight
Dying Light on Twitter: "The DYING LIGHT SEASON PASS by the numbers - 1 new map - 2 hardcore missions - 3 special skins - 4 outrageous weapons http://t.co/VYetTUzre5" / Twitter
Dying Light Getting Hard Mode Soon, And It Sounds Brutal - GameSpot
Dying Light Patch 1.5 Hard Mode Overview - Gosu Noob