The only thing that would bring me back is a complete reversal of Bungie's design philosophy. No more sadistic modifiers, no more "challenging" content that is simply there to drag out play time, bringing back vaulted content that is actually fun instead of more tedium, etc. I don't honestly care about gear tiers or what my Power Level is, as long as what is dropping is equal to or better than my current gear, and i don't care to grind hundreds of levels just to access higher leveled content when everything is always at a negative Power delta. Still waiting for that to happen, but honestly at this point I highly doubt it ever will and I am just watching the ship slowly sink. Not rooting for failure, just watching the fallout occur in a game that had so much squandered potential.