+ Titan/Protector respawn. Make them emerge from a random location (away from a set beacon) and break all block around him/her as he goes through his animation
+ Top 3 on the guild leaderboards get a protector to defend their beacon.
+ Passive protectors
+ Make some animals scared of players and run off. Like Deer and chicken like animals
+ Neutral world monsters that have benefits. Bees. Let us be bee farmers that can export honey.
+ Bonus to having pets. Pets/animals like sheep you can sheer wool, cows you can milk.
+ Animals eat the terrain/floral/crops, would give players the incentive to prevent over population