Bungie has announced that people who own a PlayStation 3 or Xbox 360 copy of Destiny will be able to upgrade to the PlayStation 4 or Xbox One version of the game for free. This upgrade plan will be in place till January 15, 2015.
The upgrade plan will not only let you play the game on the new generation of consoles, but will also let you carry over the guardians, progress made and statistics from the older generation version of the game. You will also be allowed to keep the licence for both the older and current generation of the game.
However, you will only be allowed to upgrade in the same console family. Meaning, if you purchase the Xbox 360 version, then you will only be allowed to upgrade to the Xbox One version.
In other news, UK retailer GAME has announced that Destiny has become their most pre-ordered new IP in the company's history.
Source: Destiny Website