another interesting detail that we will see happen if Valentinian does not die during the conversation with the representatives of the Quadi, is that Rome would still be capable of carrying out successful military campaigns beyond the Limes, in particular we will still witness the fortification and creation of outposts along the Danube and the Rhine and in the north of Belgian Gaul ( with the aim of creating a further defensive line for Britain, against the plundering Saxons, Jutes, Angles etc., all to avoid the repetition of a second
"Great Conspiracy" ), furthermore if these campaigns continue it is very likely that the Agrii Decumanus will be taken back by Alemannic control, allowing the return of a highly fertile and urbanized area ( as well as containing the region where the Rhine and Danube are as close as possible , therefore one could think of creating a channel for commercial and defensive purposes ), certainly this would entail, even in the event of military successes on site, the return of the imperial policy of incorporating and dispersing the defeated "barbarian" populations in the empire with the aim of assimilating them ( and I could see that those most affected in the short term would be obviously the Alamanni, the Quadi, the Sarmatians, the Saxons they will be the ones most affected by this, given their relapses in invading imperial borders, and the weakening of these groups in the long run can greatly influence the ethnogenesis of populations close to them, which could be facilitated or slowed down, in particular those most affected by this would be the Franks and the Burgundians and partly the Goths who would see their direct competitors be heavily affected ), finally, it cannot be ruled out that Valentinian might think of being able to unify the 2 existing German provinces to facilitate the collection of men, resources and finances to better defend the Rhenish limes; after all, he would hardly be put at risk by such a move, knowing the wide military success and the prestige he had, as well as residing for long periods of time in the area quite frequently