User blog comment:Mckrongs/Monster Hunter 4 for the Nintendo 3DS/@comment-1937266-20130909193552/@comment-6050823-20130909204842

Actually, they've shown Ceadeus in one trailer when MH3 was released in the U.S. They also shown Lunastra and Dire Miralis in the intros before the games were released and they were final bosses.