Here are a few of my suggestions:
[b]- Exotic Taken Shader that makes your Guardian look like a Taken version of your Guardian[/b]
[b]- Class Item Kiosk[/b]
[b]- Strike Streak Upgrade: 1 consecutive win = 1 Legendary Mark; 2 consecutive wins = 2 Legendary Marks; 3+ consecutive wins = 3 Legendary Marks[/b]
[b]- Crucible Streak Implementation: participation reward = 2 Legendary Marks; 1 consecutive win = participation reward + 2 Legendary Marks; 2+ consecutive wins = participation reward + 4 Legendary Marks;[/b]
This last one is an extremely profound suggestion, proceed with caution.
[b]- The Library: a Forge mode for simple story missions.[/b]
[i]"I could tell you of the Darkness, our ancient enemy...I could tell you of the..."[/i]
[i]"Oh shove it Speaker! Guardian, let me tell you about the tales of the Golden Age."[/i]
Bungie uses the same assets, enemies, and maps over and over and over again so clearly it is a bit of a cut and paste job already. Why not open those cut and paste tools to the Community at large? Can you imagine the types of tales the Community could weave with such a sandbox filled with Destiny assets available to them? Two names, just putting this out there: Xylar and Randal.
For objective building, simply take the programming foundations of the Patrol Missions to design simplified Win-Condition nodes. To help boost the dynamics of Community driven stories, include other nodes such as sound effect nodes, if/else nodes, Ultra-Boss nodes (defines an enemy asset as a yellow health, skull and crossbones Ultra, complete with custom name slot), player-effect nodes (i.e. trapped in a cage, covered in bile, someone's presence stops health regen, filled with Light), and message nodes (since the Community wouldn't have access to Voice Actors).
What was that thing Bungie wanted Destiny to be?......oh right a "Living World" that is "constantly evolving." No better way to do that than to empower and foster Community creativity.