Yes! Weapon modification system would be awesome, but i think the develop date of that would not be soon since there are still many things waiting to be completed.
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