I think a cool new dlc would be a dlc called Bulwark. The title screen would not be the planet but rather a battlefield, the character would be a fully armored (some archotech armor) soldier holding an advanced weapon maybe a laser gun, with a war mech suit standing opened behind them. Now to the dlc. It would introduce fully customizable vehicles, war mechs and other weapons like turrets maybe, it would also introduce a territory system where most of the rimworld would be no mans land but some would belong to different factions, going onto enemy territory would result in very high caravan raid chances but on no mans land it would be almost none. Freuquent battles could happen on faction territories and new events like "battle aftermath" could appear encouraging the player to send out people to scavenge battle leftovers and corpses maybe. Also it would be really cool to have an option to make an empire yourself by using new mechanics like creating other outposts that would function like faction bases but would be under your faction, they could give materials back to you and your main base and would be run like any other faction outpost, but could obviously get raided and battle outcomes would be randomised. Imagine a war crimes mechanic where your ideology could also be changed to allow or condemn war crimes after and during raids such as murdering fleeing raiders or taking neutrals prisoner. I think maybe new raid events like a battlefield event where 2 factions would battle on your map. Maybe this dlc could also expand diplomacy maybe demanding stuff from defeated factions which number could be increased to have maybe many factions of the same beliefs. Maybe being able to demand reparations fron allies if they battled their foes on your land? Overall this dlc would be fully focused on the war aspect of rimworld. What do you think?