Im far too new to comment on Dayz current state when it comes to endgame. But even as a sandbox i think there needs to be something to strive for other then killing people. Things that often make sandboxes amasing games are that the community decides where the game goes. A few examples are such as clans having proper headquarters and politics between groups of players fighting eachother for something. What if there was somekind of territorry claim for groups of players granting them forexample a option to spawn with eachother in theses locations and stashing equipment as long as other players dont claim it? As i said i am far too new to actually give any proper feedback and just spewing out some factors that make hardcore sandboxes playable for longer periods.