It seems that HumaNature Studios, an indie developer run by Greg Johnson, is working on something for Sony. Johnson is best known for developing such titles as Toejam & Earl and mobile versions of Spore and The Sims 2.
According to Johnson in a Tech Artists forum "starting a new title directly for Sony that is cute and filled with quirky personality. It's also super innovative in the area of emotional AI and personality simulation. It designed for both male and female players, and will be marketed in the U.S. and in Japan.", HumaNature is
A clue to what the developer is creating can be found in the Gamasutra job seekers board, which "should love games that create charming and believable, emotionally compelling simulated worlds; games like ICO, Beyond Good and Evil, Animal Crossing, Scribblenauts, Little Big Planet, and others."a mid-to-senior level designer for "a major console product", and that the applicant
The description suggests a PlayStation Network and/or PlayStation Vita title. Stay tuned.