User blog comment:Dr. Eggman rox 2/Ultra Street Fighter IV 5th Character Possability/@comment-195.67.78.50-20140204082743

What about Dictator’s and Rose’s mistress? She is female, doesn’t have a name (to my knowledge), is in the SF comics and she fights (not sure but I remember it being something Soul/Psycho Power related). Sure, she may be dead but Capcom has "revived" SF characters before.

The only other SF character I see being possible is "Gouken’s daughter" but I think Dictator’s and Rose’s mistress is more likely of the two.