I'd like if her introduction leaves it ambiguous as to whether the Ogun/Shadowcat arc happened or not.
There could be a metatext for a chapter to speculate over it, and whether she's saying she (eg) likes the mall's tacky ninja stuff and action movie posters (because she really hasn't much idea about actual ninja, the arc hasn't happened... yet?) or she's doing it because she thinks that sort of carefree, nonsensical, high visibility, bastardised depiction of them mortally insults Ogun's values and she gets an immature kick out of doing that, because she's a bit immature sometimes).
It'd also mean that there'd be an opportunity to write something with aspects of a secret identity storyline with the existing trust mechanics in a setting where there really aren't obvious reasons to expect a secret identity or the scope of trust mechanic having additional and rather different implementations for characters in later chapters.