User blog comment:Xlr8rify/No Bandai Namco Characters?/@comment-4696205-20140430024538

Although they have added the Rally-X flag and Galaga ships as an item, it is true that Sakurai stated that Bandai Namco isn't planning to bring any characters as playable, since they're just helping Sakurai on the production. However, Sakurai did commented that IF they decided to put a character in it, which I repeat that it's an IF story, then that'll be Pac-Man, since most of Pac-Man's games were sold in Nintendo Franchise since the NES era, crossovered with Mario in the Mario Kart arcade game, and mentioned as Shigeru Miyamoto's fan-favorite character since then. Reference> http://www.ign.com/articles/2013/06/14/e3-2013-namco-bandai-characters-receive-no-priority-for-super-smash-bros

I would really doubt that any characters from Soul Calibur and Tekken should join the Smash Bros. Yes, their game did came out in Nintendo franchise, but typically their games are mostly and mainly mentioned on the Playstation side than Nintendo, and they're characters doesn't seem to fit well in the Smash Bros. world, like how people thought Snake didn't fit well either. Furthermore, I would rather say Mega Man and Sonic is well enough to be kept as SSB4's special guest character, since Sakurai believed that adding too many third-party characters may lose the meaning and purpose of "Nintendo All-Stars", which he decided to narrow it down to only 2 characters for the third-party roster, as Sakurai wants to put more Nintendo characters if possible. Reference> http://www.ign.com/articles/2012/08/07/masahiro-sakurai-talks-super-smash-bros-4