According to this, Street Fighter IV producer Yoshinori Ono is listening to the fans when deciding which extra characters to put in potential home console versions of the fighter.
"If and when there are console versions, we could see someone like Sakura-chan (from Street Fighter Alpha) or Ibuki (Street Fighter III)," he said. "For a home version, you can sit and practice the characters as long as you want to before you take them online. So there will probably be a move to add even more characters to the home version."
Ono added: "Of course we know that there are people who want Alpha characters, who want III characters, who want all-new characters. We get emails, we read the message boards. We're listening to all of those voices. We have to respect those users as well, they're terribly important."
No home versions of Street Fighter IV have been specifically announced as yet.