Erina Nakazaki who had played Smile Sumida in Kamen Rider Zero-One is going to return in TTFC Direct Production Theater: Kamen Rider Saber Episode 1: "Saber & Crush the Fogged Heart like that.". Her role in this episode is still not known but it has nothing to do with her Zero-One character. Maybe they could add some references of her character.
Video Message by Erina Nakazaki