Super Smash Bros. has always been known for pitting the best characters, not only from Nintendo’s first party games, but from other third party games as well. Director Masahiro Sakurai has confirmed that you won’t see that many third party characters in the new games, even though they’ve had help with outside developers before.
“Adding third-party characters should be considered a very special case,” Sakurai told IGN. “In the last game, when we added Sonic and Snake, there were lots of different hoops to jump through as far as getting approvals and making sure all the parties involved were happy with the way things went. You can consider it a very special circumstance for that to happen.”
Pokémon characters can be tricky to bring in because of the licensing arrangements, Sakurai added. “It’s much tougher than people can imagine. I know lots of people have requests and their own ideas about third-party characters that would work, but I want people to understand that adding a third-party character like Mega Man is a very special situation,” he said. “Smash Bros. can still be considered as an all-star collection of Nintendo characters. Just like with Mega Man or any other third-party character, it would have to be a very special situation.”
Smash Bros Wii U and 3DS will arrive sometime next year.