I think it's because the king of the rabbits will return and lead the acorns on their revolt against the giant sea rats from the netherlands, where they contracted some strange new rat disease and are trying to give it to the rabbits so that the rabbits will turn into fleas and fly away, far from home, in order to settle down on rover's fur and force you to take him to the vet, who will then suffer a nervous breakdown and slaughter everybody in his church group, thus forcing the faeries to come back and give me a million dollars.