Instead of Lost Sectors and Adventures (or as well as) I would love to have seen mini story missions that allowed us to play as characters from the past and do the thing that made them legend. It would be such a good way of giving context to our universe while making all the current and future battles all the more meaningful. I would call them Projections, where we project our light into the allies of our past and experience their Destiny, as a means of rectifying our own. Their Ghosts who had perhaps grown old and worn down could perhaps serve as gateways into the past of their former Guardians. Maybe some of these Guardians could die and that could be the end of the Projection as their final moment, or maybe they prevail as they accomplish things that we find ourselves grateful for upon completing? I don't know about anyone else but the beautiful universe Bungie has created doesn't feel nearly as epic as it should, and there are some really creative ways of giving context to it that we are yet to see.