mtj, Sakurai insinuated that he'd shy away from third parties, and said that they're near their limit on characters (not by data storage, but in balancing terms), they never said they'd go lower.
As for comparisons, apples and oranges, people. I can have fun in Smash in ways that I'm not sure I can here, and vice versa. This game is more offensive, Smash is more defensive. This game is a bit more strategic based on what and how I've played, although Smash has its strategic moments. They're both fun; that's all that matters.

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