Short of actual migrations which I'm sure are more difficult with a map this size, I am hoping meta events turn into real events. Here's what I'm thinking. 1) Couple NPC bandits come knocking at your base and you have to deal with them Side event - if too much noise (guns or screaming or whatever) spawns a nearby mess of zombies walking your way.Possible Side effects - damage your base (holes in fences, etc), destroy your water barrels, food, etc2) NPC girl comes screaming your way dragging a mess of walkers behind them 3) NPC shoot out happens near-by and spawns a mess of walkers that wipe them out, they stick around for you to worry bout 4) any explosion or fire or alarm has a chance of spawning a mess of zombies with a path walking toward the event 5) NPC dog comes around barking near your base, a chance of here come the walkers. 6) Your pet dog starts barking You get the idea.