Xenosaga has not yet been repped, plus it has appeared on Nintendo systems four times: Xenosaga I&II, SRW OG Saga Endless Frontier and its sequel Endless Frontier EXCEED, and Project X Zone (assuming, of course, that crossover appearances are still considered relevant enough for a character to be in this game). Plus, Xenosaga is made by Monolith Soft, which is now a Nintendo first-party subsidiary, even if that doesn't mean much anyway.
Hope this is enough for her to be considered.