The sequel to Bungie shared-world shooter Destiny, which was rumoured to release this September, has been delayed, according to Kotaku sources.

Although Destiny 2 hasn’t been announced, a contract made public during a court case between Activision and former Call of Duty heads Jason West and Vince Zampella revealed that a core Destiny title would release every two years, with expansions dropping in the intervening years.

"People familiar with goings-on" at Bungie also told Kotaku last week that plans for the smash hit title are constantly shifting.

Apparently Bungie’s leadership has been uncertain what exactly will be released for Destiny this year, what will be put aside for Destiny 2, and whether near-future content will be free or paid.

The only concrete Destiny content planned for this year is a Valentine’s Day event, although Bungie has teased something bigger that is expected to hit in a few months.

One source told Kotaku that a small team within Bungie has been tasked with building several new DLC packs over the next year to make up for Destiny 2’s delay.