For people saying that playing with the same guns expansion to expansion would be boring: that choice should be ours. If Bungie decides to make better guns than our current ones, then yes, old guns will no doubt be replaced. All signs point otherwise. Each expansion has been largely underwhelming (barring a few exceptions: Banner weapons, BH, Trials weapons, etc). Forcing us to discard amazing weapons just because of damage level increase and use their new ones is constricting, and negates all the work we've done earning, upgrading, rerolling, etc. And even if the new weapons are great, it's counterproductive, and makes you immediately feel like "why should I even bother anymore, because these weapons will be irrelevant in merely a year as well."