Get All The Trophies/Achievements
With the exception of a few key trophies, getting the platinum in this title is not actually that difficult. For anyone who has been playing since at least King’s Fall you will probably have many of the more time intensive ones unlocked already. If you are looking for something to do while you wait for this new content to drop, try and obtain all the achievements in Destiny, as they can be a great way to help refresh your ememory of the mechanics, levels, and classes.
Plus you can try for the Flawless Raider trophy, which requires players to beat an entire raid without anyone dying once; quite a challenge regardless of how skilled your team is. This not only allows you to re-experience the raids but add a nice layer of difficulty to what would be a normally easy run. Also, it just feels good to have unlocked everything in this game and not have to worry about it any more when Destiny 2 arrives.