There's a few changes I'd like to see. Of course, getting all of them at once would make her much too good. These are just suggestions of things they could change (whether it be one or a few) to improve her.
One would be to increase the speed of her low sweep from moves like PPP2K, 6KP2K, etc.. If not that, then make them cause a deep stun instead of a hard knockdown, because as they currently stand, they're terrible.
Change the active frames of HKS for the entirety of the "stepping" duration.
As I said before, remove the launch properties from K so we could get the KK bound.
Carry over HCH status for her 46T and 46T
Increase the stun duration on 6P so we could have alternate reliable hits to follow it up with instead of P (since, as it stands, an opponent that SE on fastest is only in the stun for 11 frames, making it the only move that's guaranteed to connect). Obviously, this severely limits her combo potential after throws like 46T where the only move that hits and causes a stun is 6P.
Increase unholdable frames following her 4K. This is to make sure opponents can't instantly counter out of the CB setup and punish her because they spammed a counter.
Remove the wallsplat from 46H+K. One of the most needed changes for her at the moment.
Make BT 2P guaranteed after 66H+K (very small change)
Increase the speed of 4P+KP so it can hit in a combo without needing the opponent to whiff a counter. Not in all circumstances, of course, but before, her 44P stun was juuuuust long enough to connect into this. I would like to be able to do that again.
Cause MS H+KPP to jail and become a natural combo.
Reduce recovery from 3PK_H
Have 3P/BT 2P track
Increase stun duration on PK (NOT P+K)
Give her more frames for her low punch hold so something can be guaranteed after it. Or, at the very least, shrink the distance she pushes the opponent. The latter would give us a mixup to either throw or attack after the successful counter.
And, if none of the other suggestions work, then revert 66H+K to its former glory. That means its old recovery frames as well as the rebound.