One thing I'd like to see evolve in the whole GTA-Mayhem genre is the way emergent encounters escalate from one star to 5 star "the whole world is out to get you and will continue non-stop until you die or run away". Every time I fight and then have to run away because the enemies will simply never stop coming, which is a shame since these crazy huge battles can be some of the best parts of the game - but running away makes me feel like I've actually lost those battles every time.
I guess I'd rather see something more like a Horde mode mentality, where you there is a limit to the waves that will be sent against you, or some kind of street battle "win" condition, something, anything, as an option besides running to one of your properties to drop your notoriety. Maybe after X waves of enemies your gang could arrive (like they do in the horde like side missions), and while your gang is battling it out you can leave the area and drop your notoriety as you move away from area.