Honestly, I kind of want Jean to keep the dress silhouette, even if Polaris has it too. She's one of like... three heroes I can think of that wears it, and it isn't like she's a martial artist. It works for her. It just needs to be updated.
So maybe I'm seeing what I want to but I also don't think there's enough detailing for it to move into pants after her butt, I dunno.