Even though it is plausible that she is involved in Juohger, it is best to wait the official announcement coming from Toei. In case this is proven to be true, this is her 2nd role in a tokusatsu series. She previously played the role of Sayo Kadoya/Priestess Bishium, Tsukasa Kadoya/Kamen Rider Decade's sister in the Kamen Rider Decade: All Riders vs. Dai-Shocker film.
[Source: Animal Sentai Tumblr]