Please note that the following information are not yet confirmed and will not be confirmed until Weekly JUMP's release next week.
Due to the massive number of performances prepared for Musical Prince of Tennis - The Imperial Match Hyoutei feat. Higa, it's said that they have decided to do double roles for the whole Seigaku cast. Which means that the next myu might have the 5th!Gen Seigaku. The 5th!Gen will perform in Taiwan and South Korea while the 4th!Gen will continue to perform in Japan.
The cast list, as stated in some blogs and in 2ch, are as follows:
4th!Gen Seigaku
** Will retain its cast except for Kawamura, Horio and Kachiro.
** 4th!Gen Kawamura will be replaced by
Kon Teyu, who is Korean.
** New 4th!Gen Ichinen Duo will be Yamada Ryo (Horio) and Itou Tsubasa (Kachiro).
5th!Gen Seigaku
Echizen Ryoma:
Takahashi RyuukiTezuka Kunimitsu:
Baba RyomaOishi Syuichirou:
Tsujimoto YukiKikumaru Eiji -
Takazaki ShoutaInui Sadaharu - Arai Yusuke
Kawamura Takashi -
Chou IkkoMomoshiro Takeshi -
Nobeyama Toshihiro (of DASH!)
Kaidoh Kaoru -
Hayashi AkihiroHorio -
Maruyama ShunKachiro -
Hirai HirokiKatsuo - Watanabe Masashi
** There is no 5th!gen Fuji actor as of now because the previously assigned actor had to withdraw due to some reason.
** All of Higa will be present in the myu.
** There is no clue about the Hyoutei cast.
** AVEX is handling all the legalities of the casting, as well as the auditions (especially for a new Fui). I think they're doing a good job of making sure 4th!cast is not going to die of exhaustion in this myu xD.
Other than that, the more important news (IMO) is the new set of Best Actor Series
Best Actor Series 011 - Watanabe Daisuke as Tezuka Kunimitsu
Best Actor Series 012 - Luke C. as Kite Eishirou