Maybe add some weapon upgrades that WE can do it ourselves, like making a pipe eletrified or a shotgun with explosive bullets
Indeed, im waiting for an Android update on the city or just an update on the creatures for now, but i'll wait patiently for the update, a good thing would be traits when the npcs get added, such as a justice trait, wich if you are surrounded by more enemies than you, you get a buff damage or a trait called last resort, wich you would not get downed easily