If you read the contract between activision and bungie I believe. It states the Destiny Game #1 to be PS3, Xbox 360, and possible Xbox 720. Then listed under Destiny Game #2 it stated PS4, Xbox 360, Xbox 720, and PC. So it's possible that because they have a 10-year development window after the release, they may remake the game for the next gen consoles and port it to PC as well.

