I'm not too choked up about moving into the next year myself. We can all understand his pessimistic outlook.
Tomorrow often does look dark.
He wrote to people threatened with persecution for their faith. They probably weren't too eager to move into the future. To help them, and us, face what lies ahead, John painted a picture of our ultimate future. As we face what lies ahead, we can count on that. Hope in the God of all our tomorrows provides optimism for the future and gives strength for today.