I look at it the other way. Destiny has been out for over a year now, and yet, it's far from dead. I haven't played in a while, but I (and most people I know) will eventually go back when another DLC drops. That fact alone is impressive, and should inspire other game developers. The really #1 area that Destiny SHOULD be copied is their multiplayer/online capabilities. Never has a co-op mode been as fun and robust as it is in Destiny. Think about how much more fun a game like Fallout 4 would be if you could team up with buddies. Thanks to Destiny, the model is out there. Just as Destiny could stand to learn a thing or two from Bethesda games' offline mode, Bethesda can learn from Destiny how to incorporate a successful multiplayer mode without having to go down the MMO route.