Stussy kinda gives me early Robin vibes, yeah, she's ruthless, but might not be outright evil. Hey, are any of Oda's female characters like 100% evil? Even with Big Meme, supposedly an evil overlord, you have a "I just wanna have a nice big family" "twisted Wonderland" and "Imma be suddenly kind to Tama" moments, so one could argue that if Big Mom had a different upbringing, she might've turned out just fine. At this point I kinda stopped taking female villains seriously in OP, well, maybe the Mariejoya noble ones are shit, but all of them are shit, without someone being especially notable.
Bonney is likely to travel with SH, but she totally gives me Law vibes.
Vivi... I doubt she'll return as a SH, tbh, but let's see, OP likes to prove me wrong sometimes :)