User blog comment:Dr. Eggman rox 2/Ultra Street Fighter IV 5th Character Possability/@comment-1834116-20131229220640/@comment-3005395-20131231191419

Well, to be honest she seems pretty likely. Lucia is female, never been in a Street Fighter (to my knowledge anyway), would be making her fighting game debut and is related to the seiries due to being in Final Fight 3. So with all facts we know so far she could possibly be the 5th character.