During the live stream last Saturday at Twitcast, MAGES representative Chiyomaru Shikura has announced that an anime adaptation for “Steins;Gate 0” and “ChaoS;Child” is in production.
“Steins;Gate 0” visual novel was also announced. It is a new follow-up game to the original Steins;Gate visual novel.
“Steins;Gate” was previously adapted into a TV anime series in 2011 and a movie in 2013.
“Chaos;Child” is the fourth game in 5pb.’s science adventure visual novel series after Chaos;Head, Steins;Gate and Robotics;Notes.
Steins;Gate 0 Teaser
Sources , 
The official website has revealed a new key visual for upcoming anime sequel “Digimon Adventure Tri.”
The website also revealed that the original cast except for Shihomi Mizowaki (Palmon) will return to reprise their roles in the sequel. She is replaced by Kinoko Yamada.
Wada Kouji and Miyazaki Ayumi will again perform the newer version of the opening song, Butterfly and insert song, Brave Heart, respectively.
The series will premiere in April 2015
According to post on official Twitter account, Ayatsuji Yukito revealed that he plans to write a spin-off and a sequel novel of his horror mystery novel Another .
Internet service provider BiGlobe posted two different poll where fans were asked on what anime series fans would most like to see a sequel of.