As the Empire solved the matter with Homunculus, all the closed cities were now fully opened. Now, people were allowed to travel to other places and freely exit the city. At least for now, there wasn't any threat to the Void figures. However, it was clearly mentioned to all the citizens that the situation might change at any given time, and all the cities of the empire might be closed again.
After all, the problem of the Homunculus wasn't completely resolved yet, and there was also ongoing war. Due to these two factors, the people of each city were advised to stay inside the city until everything became more peaceful.
Those who wish to leave or enter the city, either through the use of the teleportation Arrays or Gates, will need to go through heavy security checks. This ensures that no Homunculus pretending to be an ordinary citizen or soldier or anyone manages to enter or exit the city.