You have some good ideas. Some will be possible in Destiny 2. People expect giant changes to Destiny. It'd be great to have tons of new content. But there's only so much that can be added to the original game. If we were paying monthly fees, we might get bigger chunks of content, but Bungie chose a plan that's more familiar to console gamers. Release game, sell a couple DLCs, and release the next full game. Small changes, bug fixes will happen, but I don't expect WoW level additions to to Destiny.