Yepp, Borisenko is also confirmed for next season.
The only doubtful player for Kazan in A-team is MB Irina Kuznetsova, with Bown in the roster there is no place for her, at least not if she wants to play.
She is OH/Opp, not MB...last season she played sometimes instead of Makhno and several years ago I watched her in RUS Junior NT together with Kosheleva and Rusakova, she played as receiving Opp there.