I'm on mobile so I can't grab the full quote, but his line about "having made more mistakes than any other man, woman, or child" screams Bronze Faction Elder who regrets what he did to me.
Maybe he doesn't believe that at first, but eventually he broke from the party line and went independent, focused on teaching the Dragon-Blooded / Hunters how to care for themselves. In the modern day of Creation he would have a very hard choice regarding the return of the Solars.
True. I guess in that case the difference between him and Kejak (and there has to be
some difference, otherwise there's no point to introducing Ozpin at all) is that Kejak was confronted with the same feelings of guilt and regret, but instead turned toward trying to justify it instead. Because unless I'm drastically misinformed, Kejak's Motivation these days is literally "Justify past sacrifices." Perhaps Ozpin's would be to find a way to "Atone for past mistakes?"
Well, i don't think that Ozpin-as-Sidreal would necessary disagree with Bronze Faction or wouldn't be trusted with Heptagram and education of young Sid sorcerers. In RBWY he was hiding the secret war with Salem from all his students and wider world. His name is allusion to "grand wizard of Oz" for Sol Invictus sake. He is as Bronze Faction as you get, if you don't subscribe to "Bronze Faction is evil and obviously wrong" side of argument.
I don't think he'd be firmly against them or anything, but even if the bloodshed of the Usurpation didn't make him question whether it was really the best course of action, stuff like the Great Contagion and Balorian Crusade, and even just the way the Realm operates as a matter of course these days, might make him wonder whether Creation was really better off without the Solars.
If it involves a JNPR main character, it's almost always Jaune. Though I did think about Pyrrha becoming both a Dawn and a Battles in top of the tower for a while.
I mean, I can certainly see Jaune as an Exalt (depending on when in his personal story it happens, either as an Infernal or a Solar) but come on, it's
Pyrrha. She's awesome! Definitely a Dawn Caste, too. Though, much like her divine patron, she'd probably have several high Virtues that would pull her in a lot of different directions. You could make a very good case for Pyrrha having at least 3 points in everything except maybe Temperance.
And as for Nora and Ren, I think I'd make them Sidereals as well. If nothing else, it would justify why they have such a lesser role in the story than their teammates until Volume 4.
Nora seems like an obvious choice for a Chosen of Battles at first, but I think that she's actually more a fit for Serenity. Why? Because Nora's been described by the writers as thinking of fighting as essentially a game that she's really, really good at and loves to play. While she can take it seriously, something needs to force that on her. And Nora's behavior outside of combat seems to be on enjoying life with her friends. In fact, she's basically like her inspiration, Thor; fights all the time because it's both necessary
and fun as hell, then spends the rest of the time feasting and bullsh*tting with his buddies. And she's already got the blue eyes.
As for Ren, I guess he's the best fit for the Chosen of Endings (and I'm actually saying that this time, not somehow typing it on accident instead of Secrets like I did with Ozpin). Ren's backstory is one that is very suited to instilling in him the idea that "life is defined by endings, both good and bad." He's appropriately solemn and serious for a Sidereal with those particular duties, but still not without warmth and compassion. Plus, it's got Martial Arts as one of its main skills IIRC and its color is purple, which is the closest to the pink in Ren's eyes and hair.
I guess they'd be members of the Gold Faction, to explain falling in with Pyrrha and Jaune. They might meet through the Cult of the Illuminated.
Principle of motion, a spirit charm, lets you get extra actions.
Is it like this?
That's probably the best way for one to portray it, though I think Ozpin's time f*ckery might be better portrayed as a Sidereal Martial Art that allows the user to f*ck with time by alternately compressing and stretching it (but no time travel, of course). Though given what I've heard about SMA, I wouldn't be surprised if that was already a thing.