It's very difficult to say without having gotten an extensive look at her moveset, she's the kind of character who we really need to see in action and can't just judge off of a short clip as a lot of her strength lies in numbers and knockback angles. Like, the shield buff is pretty significant, but maybe it's to make up for Luma being made easier to kill? And if they fix her up-air cheesing then that's a huge blow to her.
I'd be very surprised if they made her stronger, I think any buffs they give her will no doubt be compensated with nerfs elsewhere, I can imagine them tuning her to be less frustrating to play against while trying to keep her power intact. She's the kind of character who's likely to always be at least decent though, unless they give her the launch Smash 4 Meta Knight treatment and completely gut her hitboxes or something extreme like that, her moveset and concept is just really strong at its core.