I always liked the idea of wearing the headband sideways and making the knot into a cute bow. Also I hope she keeps the scars. Imagine the new baby genin being all like,
“Hey, that’s Sakura-sama-sensei! I’ve heard of her—she’s a Sannin!”
"Whoah, where do you think she got those scars?"
"Naruto-sama says she got them fighting a dragon.”
"What? That’s stupid."
"Well I heard she got them while nobly sacrificing herself to save Sasuke-sama from mortal peril. It’s soooo romantic!”
"Uh, yeah, no, that definitely isn’t what happened."
"Waaait, wait, she’s Haruno Sakura? But…that can’t be her! Sai-sensei’s always talking about her, and he says she’s an unsightly hag with a demonic temperament and a third eye.”
"…Your sensei is weird, man."
"*sigh* Yeah I know."