Bungie, majority of Destiny players love the world that has been created. We love to explore and learn more about this Universe, and I personally wanna feel immersed in the story. But I can't feel that, and it makes me sad that I can't. The Tangled Shore is supposed to be a lawless frontier, but it just feels like every other location, to take an example. Everything just feels very...bland, for such an immersive world. There are stories specific to each class, but there are no class specific quests. As Guardians we protect the Last City, but we don't get to visit it at all, and just glance it from the tower.
It won't require much R&D. Just more storytelling and a little more immersion. Destiny already has 'the feels' part locked down for me, but just a little more would be the icing on top.