Aquaplus: In 2013, there are plans to release one title after another.
Aquire: 2013 will continue to bring challenges.
Compile Heart / Idea Factory: A new title in a popular series, of course something new that exceeds the imagination, is being prepared.
CyberConnect2: 2013 will have Naruto Shippuden: Ultimate Ninja Storm 3, JoJo’s Bizarre Adventure: All-Star Battle, Night Runner (tentative), and more.
D3 Publisher: 2013 lineup includes Smakare, Storm Lover 2nd, Vitamin Z: Gradation, Vitamin R, Dream Club Host Girl Collection, Dream Club Zero Special Edipyon!, Puzzle Royale, Earth Defense Force 2025, Dream Club New Shop Np5, and Onechanbara Z: Kagura (A re-release? New platforms?).
Ganbarion: New projects will be announced.
Imageepoch: They are preparing to publish their fourth and fifth titles.
SNK Playmore: 2013 will mark a great charge for Metal Slug.
Sony Computer Entertainment Japan: 2013 will be a bright new year and they will deliver surprising entertainment to everyone.
http://gematsu.com/2012/12/japanese-game-makers-discuss-plans-for-2013
I wonder if Ganbarion is working on a WU or 3DS game. Also, Acquire's answer is pretty Japanese. It reminds me of that time Inafune said he sees every new platform as a challenge that he must overcome. I just see new platforms as a new way to play video games.