Why I think Goku should never come to Smash Bros.

[CaptainExplosion]

Sephiran said:

Sakurai have stated that he will only put characters that originated from a video game into Smash, Goku originated in a manga so he will never be put into Smash, unless Sakurai changes his selection criteria.

I sincerely doubt he ever will. The closest he's ever gotten to adding a non-gaming character is Sora, and that's primarily because of the Disney connection.