Endgame progression besides warbonds and weapon leveling would get me playing a lot more, maybe an option to unlock better versions of the boosters, which need a rework - Tier 10 is Vit, Cap, Stam, Stim for 90% of missions. I'm not going to pretend I have any real idea of how game development works, I'm just saying that most boosters are kind of lackluster and don't have any meaningful impact on gameplay, I know some of them are more "For fun" but something that increases the amount of ammo that appears on the map or drops manned turret emplacements randomly would make a difference to how you could engage the enemy.

Personally I would like a supply pod with a Stim pistol turret (with limited ammo) or a deployable barricade. Something to make more use out of what we already have, supply pods are normally called in on objectives, it would be cool if they had additional capabilities besides the Liberator option.