#74 - Fire Emblem Finale

Fire Emblem Awakening was intended to be the last Fire Emblem game unless the sales exceeded the team's expectations. To prevent this, they added multiple references to previous games to attract Japanese players, but it ended up selling more in America

SOURCE: http://www.siliconera.com/2013/05/25/fire-emblem-awakening-was-almost-the-last-game-in-the-series/