Rather than playing ninja Zelda, I'd rather she get her own full game that's even more puzzle based than typical LoZ games and also involves aspects of managing a kingdom, having to make decisions that can bite you in the ass later and having to steer the kingdom.
Zelda does not represent the Triforce of Ninja Stealth Assassination, she is inheritor of the Triforce of Wisdom. I'd like a game that actually plays to that strength and lets you really delve into that.