source : himawaringo
It is probably true. Finger cross!!! It's on animenewsnetwork now so it must be true right? hehe. I think they just didn't officially announce who will act which character. I think Toma will be Ikuo-the big eyes longer hair one, police detective (lead) and Shun will be Tatsuya-gang in black suit(I think they're double lead but Shun is a bit less lead I guess).
It is said that Toma and Shun will be starring in January 2015 TBS drama called " Departed Ssangyong" by Kanzaki Yu, a comic book. The book is about two young growing up in an orphanage for 15 years and having witness an orphanage teacher was killed but was not allow to tell b/c being threaten by police. After many year, a local police who becomes the new leader, collaboration between the two men became lawless sanction guards of "Ssangyong" The two main characters, one is Shinjuku second highest detection rate police department Ryugasaki Charioteer (Toma character?) , and the other is the new leader of the gang Aaron (Shun's).

(click on pic for full size)
I've been saying that if Toma 's ever come back to drama again, it's gotta be a suspend action drama, no police or ghost (I am tired of these type drama). It's finally happening. I am so freaking happy. This is gonna be epic classic drama like Maou.
Btw Toma will be starring as story teller in "Yakushiji sound stage" on aug 10 MBS. I am not sure what is this? Can we watch it on TV or it is a stage play? If anyone know more about it, please give more detail. Anyway, I went to the website (www.mbs.jp/oto/), it's like a radio stage play? weir.. I guess I can't understand or watch it..:C