Honestly, there's no reason why PVE side of things should be affected by this, since the main issue of aim assist comes from PVP side. Nobody's complaining about aim assist during Inverted Spire. And, also, nobody's complaining about controllers, themselves. It's when keyboard+mice gets controller's aim assist through third pary hardware, when the problem arises. So due to those two points, I believe controller oriented pve players won't be affected. I imagine, the easiest way to deal with aim assist issue, is to disable AA for pvp matches, only. I sincerely doubt Bungie is going to cripple, and possibly, lose a big part of it's community, right off the bat. Chances are, they're going to ignore AA issue on PC, or simply tone AA down, during pvp matches.