Galdera wasn't meant to be a God of Evil.
Alright, hear me out. As Aelfric points out, Orsterra was a Sugar Bowl before Orsa's death. However, there's a problem with this: he claims that Galdera killed Her, when in reality it was a Death by Childbirth. Aelfric and Galdera are brothers, so Aelfric should know Orsa's death wasn't Galdera's fault. Then why is he still blaming Galdera for it? Was it that Galdera was born evil? I think not. What I think is that either Aelfric is selfish and no better than Galdera or, more likely, Aelfric has no choice in the matter and Galdera was made the monster he is by Finis. The entire thing with Galdera deliberately killing Orsa was started up by Finis to give himself an excuse to be abusive towards Galdera. That can't be good for your mental health. Galdera tried to do a The Dog Bites Back towards Finis, but ended up having a feud with Aelfric over this, feud which led to Aelfric creating the Sacred Flame and wounding Galdera by accident. Then Finis sealed Galdera behind the Gate of Finis, a special hell he specifically designed to use once he'd find an excuse to ground Galdera for eternity and started blackmailing Aelfric into spreading out the story that Galdera is a traitor and Orsa's killer and Aelfric put Galdera in his place and never try to claim otherwise. And then the eight primary job gods are turned into sacrifices for reviving Orsa. You would expect they wouldn't be happy with it, right? That's how the rings are described to be corrupt. And Galdera's daughter Lyblac saw the whole feud between Aelfric and Galdera and believes that Aelfric is a willing accomplice towards Finis. She also knows that at least Brand, Dother and Aeber are not happy about being turned into sacrifices, so she decided to use them to overthrow Aelfric. The plan fails because of Finis giving the ring of Aelfric, the one God he had the tightest grip onto, to someone in order to put the other gods in their place and then tighten his grip on the gods. Worse, while trapped in the Gate of Finis, Galdera underwent Sanity Slippage and Motive Decay, turning into the Omnicidal Maniac God of Evil that he is today. And with Finis ruling Orsterra with an iron fist (I really do not believe he died when Sazantos wounded him), the only hope Orsterra has is a vigilante atheist who'd try to become a God without using power or blood from Orsa and Finis, since without relation to the two, Finis cannot blackmail him. Theoretically, that would be impossible, but with Tressa, Olberic, Primrose and Therion appearing in Final Fantasy Brave Exvius and all eight Octopath 1 travelers appearing as spirits in a limited-time event in Super Smash Bros. Ultimate, there may be hope, since all video games share a multiverse. Each of the evil ringbearers is an analogue to the Seven Deadly Sins.
Tytos is Wrath (he is very wrathful, and his past is related to the destruction of Erhartd's home village of Grynd, as failing to save it is Tytos's greatest failure), Herminia is Greed (obviously), Auguste is Sloth (the entirety of Master of Fame was Auguste's scheme to get himself killed), Pardis is Pride (again, it should be obvious), Oskha is Envy (he loathes those who have wealth), Tatloch is Lust (just look at her!) and Ceraphina is Gluttony (while she herself doesn't manifest it, she leads a cult worshipping Galdera, who fits this sin to a T).- Sazantos may have actually planned to rid the world of these sins. However, he didn't phrase his wish well. If he did, then the player wouldn't have denied his world.
Pardis's older brother isn't dead.
In Victor's Hollow, there's an NPC old man that, when Inquired/Scrutinized, is revealed to be named Oswald and that he's from Edoras. Now, that would bring one to mind Pardis's older brother, who is named Oswald. While that would bring the question why he wasn't an ally during Master of All (you can only find that NPC after you start Bestower of Wealth, since that's when Victor's Hollow becomes accessible), it may be possible he has amnesia because of Pardis poisoning him.- Jossed. During the Bestower Of All arc, Oswald's soul is found in Castle Edoras in Hell.
If Rondo and Therion were to ever meet, the former would go all "My Sister Is Off-Limits" on the latter.
Well, protecting Cordelia was the reason why Rondo joined the Knights Ardante in the first place, Cordelia is implied to have a crush on Therion, and Therion is a Jerkass thief (even one with a heart of gold). The only reason Rondo wouldn't kill Therion would be if Cordelia would explain Therion was the one who returned the Dragonstones to them, and the only reason Rondo would allow Therion to date Cordelia would be if someone from the church (*cough* Ophilia *cough*) would be a Shipper on Deck for Therion and Cordelia (much to Therion's embarrassment).