Winter is coming
What if, White Walkers(zombies or any mobs) come from one edge of the map, led by Cerb(The Night King)who maybe has spawn eggs or spawners, and everyone must come together to try and kill cerb and his army. Cerb could also have a dragon perhaps. I'd love to do something like this map, but maybe not this map, but a future map it would be cool to have a whole map long lead up to this event. What do y'all think?
I like the idea of a big group effort to defeat a boss/army of some kind =). Bigger than the guild wars. It would be fun to fight beside each other. But not as often. A special event dispersed throughout the year. Maybe every 2-3 months?