Nobody knows. Nintendo might not even bother to make another Super Smash Bros game. Or, they can make a Super Smash Bros Brawl 2, and have every charachter ever created. Nobody knows. That is the future.
Shadow from Sonic is not playable in Super Smash Brothers Brawl. The only playable character from the Sonic franchise in Super Smash Brothers Brawl is Sonic himself.
In Super Smash Bros. Brawl you cannot unlock Shadow as a playable character, you can only have him as an assist trophey.
Bosses cannot be playable characters in Super Smash Brothers Brawl. ~SiferTH
shadow is not playable but he is an assist character in the game
No Shadow is not a playable character.
He is not a playable character.
Shadow is not a playable character.
There are 35 playable characters in Super Smash Bros Brawl.
Lucario did become a playable character in Brawl.
There is not playable character called Jet in Super Smash Bros Brawl.
He is not playable in the game
shadow is not a playable character, but you can find him in an assist trophy.