Wolfox

The main reason a lot of Awakening characters are in Tha game, asside from them being really popular for the less old school FE players, is that Awakening stopped FE from going F0 and dying. As for another reason I said Azura: fates promotion. Fates got promoted by lord Stale Bread being in smash, but Azura arguably does more in the story. 

There's no reason to promote Fates anymore, though, especially when they have a reputation for being kinda pretty bad. From that perspective, it'd be extremely odd for the Smash team (or whatever Nintendo overlords oversaw this first wave of DLC's character lineup) to pull from those games specifically. 

Hence why I said replace Lord Soggy Bread with Azura. A better character from a still pretty damn good game (the game play still is fenominal, so are the characters) who also fights with a new weapon. A. D when I say replace, I mean it should have been Azura over Corrin