V-Jump this month has a brief update on Digimon Story: Cyber Sleuth.
Not much is shared in terms of new information, but two small images featuring the main character, and his Agumon and Palmon, battling a Peckmon, Guardromon, and another Digimon are shown.
The text reads:
A grand story of Digimon and boys!
A super evolution four years after [the previous Digimon Story game]. The veil is lifted on a dramatic story that begins with an encounter between boys and various Digimon.
Digimon Story: Cyber Sleuth is coming to PS Vita in 2015 in Japan.