The drama that Tamamori will be part of has been announced.
Fuji TV's Monday 21:00 drama, "Shiawase ni Narou yo", which the lead role is played by Katori Shingo (SMAP). Tama's role will be playing Kuroki Meisa's young brother, Kuroki Meisa being the female who Katori's character will fall in love with. It seems like Tama's character will have his own problems that he can't tell his family about.
There's a comment from Tama in the article.
"I really feel honoured to be able to work with him (Katori). (I'd be happy) if I'm able to receive advice from a dai-senpai and such".
This will be Tama's first time in a full season drama.
Source:
Sponichi Note that the previous news going around was that Tama will be Matsuoka's drama from NTV, so this shows that it's not the case. Hoping that the drama will be good and do well, since Gestsu9 dramas get quite a bit of attention and stuff!