Okay, I was going to leave most of the conduct stuff up to the rest of you, since I'm about as creative as a brick with this sort of thing.... "MORE DYING HAHAHAHA" or "EVERYTHING EXPLODES" probably not being very creative ideas for one, and so on....
But I do have this one to suggest. Had this idea quite awhile back during beta. It was not added at the time, and I could see why. But with this system it might work out since this is all optional. Idea is simple: Give a chance for a boss bot (or two) to appear during normal missions (though certain very specific missions probably shouldnt have any, such as MurderBot missions).
The bosses are fun but they dont have enough presence in the game. Granted, the mission type that revolves around them is a very interesting one, but it makes up only a tiny percentage of the actual gameplay over the course of the campaign. So you've got these interesting bots that hardly show up.
Exactly how the chances are determined and all of that I'll leave to you if the idea seems good. Not sure how that should function.
On a related note: Another thing that'd be nice at some point, a couple more boss bots being added to the game overall. There's so few types right now that it never quite feels like enough variety with them.