Hace unos meses se dio a conocer que Nintendo no tenia planes de actualizar el juego se Super Smash Bros y lo máximo que harían seria agregar personajes ocasionalmente, siendo esto confirmado por el propio Masahiro Sakurai.
I can’t really think about future prospects at the moment. If Nintendo decides they want to make another one and offers me the job, that’s when I’d start thinking about it. When you say ‘returning to the series’, it makes it sound like there is going to be another Super Smash Bros. title, but currently, there are no such plans. It would be best not to assume that there will always be another one.