Make pvp fun. I want to hulk smash people multiple times per match and use cool ass overpowered weapons. -blam!- balance. While you are at it, make Iron Banner fun again too. When in doubt, look at Destiny 1. Make Raids more casual friendly. By this I mean don't make each section require that 6 players all have to know what to do. The best thing about Dark Below and even VOG was that 3 or 4 experienced players could pull a couple of lower level casuals through the raid. This allowed people to enjoy themselves and not get pissed at the couple of people who were learning. We used to raid 3 or 4 times per week and enjoy bringing in newbies. Now its hard to find people who want to bother raiding at all. In short, make Destiny 2 fun like Destiny 1 was. Hope that helps.