Second half of Maou Gakuin no Futekigousha: Shijou Saikyou no Maou no Shiso, Tensei shite Shison-tachi no Gakkou e Kayou II.”Maou Gakuin no Futekigousha: Shijou Saikyou no Maou no Shiso, Tensei shite Shison-tachi no Gakkou e Kayou II Part 2″ is not a officially announced yet and as it is a light novel series it will take time for the new part to be officially announced and released.
The anime adaptation has not been confirmed to have a second season yet. Therefore, there is currently no information on when “Part 2” will be released or if it will be made at all. It’s best to keep an eye out for official announcements from the creators or the production company.