Bungie promised a killer Destiny announcement today, and it came through in spades.
The developer, in conjunction with the publisher at Activision, has announced that those who purchase the digital version of Destiny on either Xbox 360 or PlayStation 3 on or before January 15, 2015 will be able to get their coordinating Xbox One or PlayStation 4 version at no extra charge. This includes the extra Guardian content and the season pass.
What's more, your progress will carry over from previous versions of the game to the newer system, so if you start on PlayStation 3 with a particular set of weapons and what-not, you'll be able to continue on PS4. Same with Xbox 360 to Xbox One.
The full FAQ for the deal can be found on Bungie's site here, but regardless of where you go, you're in for a sweet rush with Destiny when it arrives September 9th.