After completing the campaign in your home village, you unlock goblin village and be able to play as goblins and unlock maybe another campaign against the main villages. You could also get goblin defenses and troops (eg.goblin cannon, spear goblins)
Well, supercell wasn't too original with the night village. Eg. sneaky archers ability does the same thing the archer queens ability does, makes her invisible or the same old cannon and hidden tesla.
Well the anti-player I admit is not really good. But it is called the goblin village so I dont think that it would make much sense to have any thing alse but goblins.
After completing the campaign in your home village, you unlock goblin village and be able to play as goblins and unlock maybe another campaign against the main villages. You could also get goblin defenses and troops (eg.goblin cannon, spear goblins)