They are probably gauging if it's worth to churn out a couple more character packs while working on Diablo 4 (and see where to push it) or do something different.
Sorry to burst your bubble but Nvidia will throttle the high-end volta cards to a 33%-gain only so that such miracle cards could never be possible to low and mid-range systems. It's how monopoly business models work. Check back in 3 years though.
Just wait we will see $200-$300 GPus that crush what the GTX 1080 can do next gen.
If only! :D
Destiny appeared in the Steam database over two years ago. It's not news by itself. These silvers are, but not the game itself.