Destiny was officially announced Feb/20/2013, and Bungie was bean working on it for a long time. Destiny [b]was[/b] going to be released on December/November of this year, but both Destiny and cod ghosts are being published by Activition and cod ghosts is being released on November 2013, so Destiny was pushed back on to 2014. Destiny should be finished before this year ends so ...
My best guess is February 2014, after Valentine's Day.
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Sept -November 2014. It's pre alpha now, so I would guess alpha by the end of the year, an internal // external beta spring / summer 2014, submit for cert August 2014, release Sept - November 2014. Long way to go yet.