No way they let it slip to 2015. Unless they announce some big hitters this E3 and bring those out in Fall.
And the only thing I can even think of thats on that level is Zelda and I dont see that happening.
Most of the characters looked pretty interesting but was underwhelmed with what I saw from Villager and Wii Fit Trainer. Maybe once people start playing them they may be better.
Little Mac seemed beast. Still not a fan of his final smash but will have that off most of the time anyways.