Arena Stage’s entire Next to Normal cast is heading to Broadway. D.C.-based Arena Stage proudly announced earlier today that for the first time in the theater’s history since 1979, two productions that recently played at Arena will be on Broadway at the same time: Moisés Kaufman’s 33 Variations starring Jane Fonda, and Next to Normal featuring the entire Arena Stage cast. You can read our reviews of both Arena productions here and here. Hopefully…