Nothing too analogous to the real world, please. That said, here's my take on it (Warning: Spoilers!): As magic declines across Erebus, "Govannonism" is decried by the Amurite leadership, who try to lessen the numbers of magi in order to ligthen the pull upon magical energies. This would be a temporary fix, however, and they would inevietably go into a Dark Age. Kylorin himself would probably mantain enough power to do magic, though. The Grigori are split into two factions, those who see magic as a sign of the Gods' influence and its decline as beneficial, and those who see magic as a neutral force that Man needed to govern. Cassiel's death (going by the scenarios) would make them a more vengeful people. When the Age of Technology reaches the Elven Courts, the Ljosalfar go into isolationism while the Svaltarfar adapt and go into business in the cities as businesspeople and politicians. This development might reverse as ecofriendly technology (more below) rises. Going by the scenarios again, the Illians are already gone, but any remnant civilizaion must adapt or die. The White Hand would become pariahs due to their association with Mulcarn and Auric, and be hunted down until few of them remain in the wastes. The Doviello would be forced to change or perish as well, but people with their heritage might survive as immigrants in the other Civilizations of Erebus. Their fortunes might vary, however. The Kuriotates would be accepting, the Amurites and Grigori not. If Eubarates' death in The Cult wasn't permanent, then Kuriotate civilization would profit from the new development. The Lamia might have to shift from magic to science, which might be problematic, but the creative Kuriotate environment would guarantee that the civ will be a source for many inventions. The Hippus would adapt, as cavalry tactics would be useful for a good few centuries yet. They may even take up cattle ranching, although the mercenary tradition would remain strong. Remember, they're also good guerillas, so we might see commandos from them in the future. Alexis and Flauros didn't die in the scenarios, so they and the Calabim would probably recover their strength unless purged. Even then, they may reemerge at any point, using the growing population for fooder. They and any Vampire elite would probably be powerful politicians and business magnates. The Clan of Embers would probably survive without magic, but they would be another civilization that would have to adapt to the changing circumstances around them. As guns reduce the advantage of fury and numbers, the future of the Orcs as a civilization would be bleak. Because their Golems rely on magic rather than technology, the Luchiurp's fortunes would probably fall unless they adapt. The Khazad, on the other hand, would probably use their business acumen to take advantage of technological development, gaining more power and wealth. The Lanun will be relatively unchanged, with those who take up maritime trade prospering from newer ships and tech. Piracy would decline for a while, but then rise up again like in the modern world. Swashbuckling would be gone, replaced with shoving submachine guns in the face. The Overlords would be one of the last enclaves of magical power in Erebus, and the most powerful. Another holdout of magic would be the Sidar, who would also go on as they much had, only accumulating knowledge of science as well as magic. Or possibly Laroth would have consumed them already. But if not, expect them to have only a small presence in Erebusian affairs. Varn Gosam is an Elf, and would survive for a long, long, time to lead the Malakim. He would decry the environmental degradation going on in Erebus, and Lugus would probably show him how to make solar panels as an alternative to Oil prospecting. Vast solar farms would line the desert, providing power to the other nations. The Bannor may have harsh laws, but they do not have racial or class discrimination. That means that there will be immigrants coming from the other nations looking for work. As demonic activity declines, the Order's popularity would decline as well. If Auric's sack of the Capital exposed the corruption in it, then it might have reformed into a creed pursuing true Justice instead of just enforcing the law. Elohim power may either rise or decline in the Age of Technology, but they would probably keep protecting the holy places, which would be holdouts of magical power. The trust that they hold among the other nations could become an asset, making them the equivalent of the U.N and Red Cross. Os-Gabella is Immortal, and can start the Sheaim again at any time. It would probably be a secret organization instead of a nation, but the potential for destruction is still there. They would strive to drive nations to war, and use human experimentation to create new plagues. The Balseraphs will lose their magical strength in the Age of Technology, but Perpentach would still have some mental powers left. Keelyn's dominion of the Fane of Lessers would probably go uncontested, and it would be another remnant of magical power. As for the Mercurians and Infernals, I don't think they'll have much of a presence in the Age of Technology, but there would be the occasional summoning and subversion of the Compact. If FF Civs are included, the Mechanos go into a Golden Age. While their use of Refined Mana will be curtailed, they could make do with Coal and possibly Oil. The Grigori may combine with them, but they would probably see their factory system as oppressive and even begin social activism. I'll include my thoughts on the Austrin, Scions, and other FF and RifE civs soon after.