True. I don't know how many separate versions of each area or servers there are yet I'm sure they could implement some means to gather together through the alert you mentioned being sent out, though this might be moot if they designed it so that the boss was in a sorta separate world boss area rather than random spawning as one commenter mentioned as players would of course gather there though that screams strike clone. I can clearly see the possibilities but I dunno. I'm currently on vacation and I'm dreading leaving...the DSL lol. Joking referencing the "gaming essential(s)" as everyone has limitations including Bungie as they previously stated software & hardware prevented adding more vault space so I can't imagine what they'd say regarding modifying the entire world to implement world bosses and different patrol modes though at the same time the patrol would only be a slight medication so not much data space. Maybe in Destiny 2 we'll see some of the interesting ideas gamers have come up with assuming there is a Destiny 2 as with all the dissatisfaction you never know how things will turn out.