First Sayonara Umihara Kawase screenshots
And the first details! From what we can tell*, the game will be in 3D this time while keeping its 2D grapple-based platforming. It also appears to have unlockable costume items when you complete levels, and multiple playable characters (including younger and older versions of its titular heroine).
Interestingly, Code of Princess developer and publisher Agatsuma Entertainment is set to release the game in Japan. You might recall that the company is also publishing Code of Princess in Europe as an eShop-only release (Atlus released it to retail and eShop in North America), so cross your fingers that we’ll see a similar turn of events for Sayonara Umihara Kawase.
*what we can tell being gleaned from Google Translating Famitsu's report