Akihiro Hino, president of Japanese studio Level-5, recently told Nikkei Trendy that things were still in the planning stages when asked if his studio was doing a PS4 title. "We might be able to announce something shortly," said Hino.
Love those guys. I would so devote my life to them if they could do a Studio Ghibli Kingdom Hearts-esque game. Imagine how awesome it would be to have adventures in the various worlds from the dozens and dozens of Ghibli productions!
I think Ni No Kuni was more than enough to prove, they can handle the intricacies of the Ghibli style.