Cast of Princess Resurrection TV Series Replaced in the New OVA

According to Kodansha's news letter, the cast of the OVA of Princess Resurrection will be changed from that of the TV series.

Princess Resurrection OVA official website

New Cast (previous cast in parentheses)
Hime: Hayami Saori (Kawasumi Ayako)
Hiro: Irino Miyu (Ooura Fuyuka)
Flandre: Iguchi Yuka (Kawaragi Shiho)
Riza: Kitamura Eri (Kaida Yuko)
Reiri: Toyosaki Aki (Noto Mamiko)
Sawawa: Kayano Ai (Minaguchi Yuko)

Staff
Director: Kawaguchi Keiichiro
Character Design & Animation Director: Sadakata Kikuko ("Shikabane Hime")
Art Director: Mukumoto Yutaka ("Cross Game")

Source: Scan of the notice