Sayaka Kanda (Yuna's previous actress and Kurosaki's Yuri friend) died on the heights of the Saporro hotel and commit suicide. 

She was originally set to perform on "My Fair Lady" but all things substituted after the death.

I don't know whoever gonna take Yuna's role after her death or else they gonna end Yuna's career. I was wondering Maon Kurosaki to takeover the role as Yuna 'cause her singing is quite good and a perfect fit for her. She has never been a voice actor before in years but I hope she'll be casted as all Sayaka Kanda's roles for upcoming events.