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First thing is first, Bungie has confirmed the dates for the Destiny 2 beta on the PlayStation 4, Xbox One, and PC.
Destiny 2 BETA
July 18: PlayStation 4 Pre-Order BETA
July 19: Xbox One Pre-Order BETA
July 21: Open BETA for PlayStation 4 and Xbox One
July 23: Console BETA End-date
Late August: PC BETA

They have also confirmed the release dates for all platforms.
Destiny 2 LAUNCH
September 6: PS4 and Xbox One
October 24: PC

Yeah, Xbox One owners get shafted a bit on the beta, but PC owners get shafted twice, sideways. Moving on from that, Bungie did release a new trailer today during Sony's E3 conference. In case you missed it, you can check it out below.
Welcome to a world without Light. Led by the invading Dominus Ghaul, the Red Legion’s brutal attack on humanity’s Last City has left Guardians powerless and scattered. Now, in our darkest hour, new legends must rise to challenge Ghaul and take back our Light.

Bungie says that in Destiny 2 you "will face a new enemy with terrible motives. It takes a mighty foe to hijack our power and evict us from our home." That's already more compelling storytelling than what Destiny shipped with. Boom! Got'em!