I agree with what Xenophonte said, also because it must be remembered that if the Urbicus plan is successful in the long term, we will see Rome not having to "waste" huge resources in having to preside over, defend and manage a complicated province like Otl's Britain, maintaining 3 legions constantly on site ( with the risk of possible rebellions in the area, which widely happened ) so these saved resources would be redistributed elsewhere, in hotter fronts for the Empire ( such as the Germanic or Persian Limes ) giving a chance to breathe greater in Rome ( thanks to a better capacity for rapid intervention in the event of incursions coming from those regions into its territories ) this in turn could influence the very survival or duration of the imperial administration in the West compared to Otl, given that some crises historically occurred, here they do not happen ( I am mainly talking about the British usurpers, such as Constantine III and his associates ) who forced the central government to divert resources from important fronts to intervene to resolve the various problems created