In the weekly update, DeeJ let slip that Luke had been talking to him, and how in eight weeks things will "all come together." Saying this in a way that focused on Luke's perspective in developing games like Halo 3 and Reach. A cycle that continues on in Destiny's development. Eight weeks from the weekly update is roughly the end of April. My guess is that by then, Bungie will have a beta build pretty well polished and ready to go. From there, I think the Beta will drop a few weeks later. Halo 3's beta was in May, and the game launched in September. Reach's beta was in May, it launched in September. Destiny's going to launch in September. They're going to need enough time to tweak anything that needs work from the beta, and Destiny is an ambitious project. I'm thinking May.