The Bronze Faction probably is on its way out. Or at the very least the strong anti-Solar sentiment is going to fade.
One of the gold-faction Sids in the game I've brought up a few times was helping a Solar pretty much entirely because she hated the Realm. And I think that rather encapsulates *why* things are going to change: the Solars' return is something abstract and unclear to most Sids, other than the oldest elders. They don't remember the deliberative beyond stories their masters tell them. Yeah, they know individual Solars are dangerous, but they've never known a time where the Solars were anything but those really powerful dudes that show up once in a blue moon to cause problems.
Lunars are a clear and present threat, so they're also seen as dangerous. But Solars get a pass because they haven't been an issue since the Usurpation, with one or two major exceptions popping up every few years. They were a solved problem for so long that many Sids forgot the sheer scale of the problem.
If the younger sids think 'evil empire of monstrous Exalts', they aren't thinking of Solars and their atrocities. They're thinking of the Realm. Or an Exigent. Or a Hearteater. Or a Lunar dominion. Or hell, get someone from the last couple of years and they may think of Skullstone or Thorns. But Solars? Too individualistic, too easy to dispatch before the last few years.
The funniest fucking thing is that so much of the Blood Feud is brought on by "Neither side is willing to back down over ancient grudges, and unlike the Dragon Blooded--there are actual ancient monsters on both sides enforcing the feud, as opposed to something that isn't personal for most of them."
Sure, Elders are no longer omnipotent gods that can bend the will of their entire factions behind them with no resistance possible, but they're still highly influential. It's why one of my favorite character concepts that I'll never get to play is a Serenities former bureaucrat who Exalted when he suddenly realized he can Just Leave and nobody can stop him, went on a walkabout, and in true Vegas Style ended up hitched to a cute young Full Moon girl when he came to a few months later.
They're now a sickeningly cute and domestic couple who are steadily making a pocket of the world a nice place to live as their own personal project, while both of them pretend there's no relation to their relative supporting factions, and because everything is too chaotic, nobody can be assed to look too deeply into it when they're not causing trouble.
Well, there's also a lot of genuine practical problems like "every record we have of an attempted peace has ended in bloodshed". Or how Sids live in Heaven and Lunars need to stay hidden from Wyld Hunts and the like so it's hard for the two to even get in contact outside of missions of import. Or Arcane Fate making it near impossible to even remember a Sid helped you, let alone which one or what they did that was so influential.
The Lunar/Sid blood feud is really interesting to me because it feels like an actual blood feud (assuming the blood is the carnage and not the familial relations). It's bad for everybody involved, there's little good reason to keep it going beyond 'they'll destroy us if we don't', both sides
get that, but they also can't really
fix it because of how ingrained it is, particularly at the top.
It goes beyond just the fact that the Sids support/use the Realm and Lunars hate the Realm (tho tbf that's certainly part of it); even if it disappeared tomorrow the two sides would still be at each others' throats.