My proposal is to add more single-player missions unlocked randomly as the goblins attack your base! I think it would be boring if it was just 200 goblins so maybe it would be a 5 minute long rampage of goblins with a set amount coming in dependent on your town hall level! Perhaps 1000 for town hall 10 (100 a minute), and a sort of Goblin Lord per 100 goblins so wizard towers don't get too comfortable cutting down goblins!
These attacks would occur whilst you are in your village, so they wouldn't get involved in matchmaking, and they would not drain cc troops or inferno/xbow/ea ammo. This would make way for randomly spawned goblin bases (maybe a copy of the player's/resembling it?) And a new achievement could be added! "Revenge!" unlocked by taking revenge on the goblins that attacked you!
Winning a defense, though, would grant you not only the location of the goblin base, but you would get all your loot back and a bonus for whatever town hall you are!
Also, if you're wondering, yes, they would take loot from your storages, so a 2 minute notice will be given so you can get your affairs in order. Something like "Chief! A horde of goblins have been spotted! Ready the defenses!
What do you guys think? :D

