Sony started off their 2015 E3 Press Conference with a bang as their first announcement was the re-announcement of The Last Guardian! First shown over seven years ago, and once thought cancelled, the game has been resurrected, and even has a release window!
A new gameplay video showed off the game’s protagonist and his giant, eagle/dog companion interacting with the environment. The game definitely has an Ico/Shadow of the Colossus feel to it, with (what appears to be) a heavy emphasis on exploration and environmental puzzle-solving.
The Last Guardian is set to release for the PS4 next year.