What if Miss Fortune could Move like Lucian During her ult?
After all, she's got the moves ;)
For real though, her ult seems kind of dated and it seems Miss Fortune's success seems pre-determined based on whether your team can peel for you/enemy team can dive you. I think MF needs to feel more FUN or REWARDING to play.
It wouldn't be as broken as it sounds, either, because she doesn't have a dash like Lucian (and bullet time doesn't last as long as the culling).