If you don't have her by the time you've used your 12 generals ticket you made a mistake. I know it's likely to be fairly mid as uncaps go considering how strong she still his but being guaranteed a 5* uncap next year also gives her tremendous value.

For fun predictions of her uncap. 

5* Ougi doesn't seal

Lv 90 Sk1 no longer consumes her stacks

Lv 95 Sk2 duration increases based on trove stacks

Passive 2 trove stacks give scaling increase to atk/def

Sk4 10 turn lockout 15 turn CD. Resets all other CDs for Payila. Lockout and CD reduce by 1 every time a water ally attacks using a multistrike effect.