It won't die, but the fall off rate for players is getting shorter and shorter. Its been a month since TTK was released and already people are getting bored of it. There's nothing to do. Nothing to explore or discover in Patrol. Nothing to gain from doing Strikes or Raids after you reach 300 light. Crucible is there for those who like PVP, but after a few matches even then it starts to get kinda stale. In the end, we're left with the same product that came out in 2014. A stale game with a poor story and player experience, but with a little more content in it.