May contain spoilers.
[SPOILER="Spoiler"]*Kai was supposed to be released even before Evie was, but they didn't like how he played so they decided to rework him.
*Technically, the Fomors are a group of races, not one singular race. (Though in mabi it is rumored that the shadow monsters in the shadow realm are actual Fomors, but I personally think they are the deceased Partholonians because it was explained that the shadow realm was created by the negative emotions of the Partholonian Prince, also known as the Python Knight, from having his civilization destroyed by the jealous Gods/Goddesses. Feel free to present any evidence on this.)
*Dark Knights are not evil, they actually serve Morrighan more closely than Paladins. (Can't tell you how many people think otherwise.)
*With all of Lann's shortcomings, he isn't actually an absolutely crappy character, he just requires skill to play.
*The vampires are not part of the Fomorian army, they came from another world entirely after an accident caused by the Pontiff Court that summoned them here. The goblins met in Ainle are under the control of the vampires, more than likely through mind control of some sort. (which would explain why they are so slow and inactive compared to the more hyper ones in the Fomorian Base.)
*Glas Ghaibhleann is actually a failed summoning by Brynn to summon the Goddess into the world.
*The polar bear is NOT a Fomor, it is just an enraged animal. (I facepalm whenever someone says it is.)
*The Spider Queen (which is its actual name, people just call it Weeping Queen because of the mission) is the mother of Wenshardt, the spider you kill in the prologue who was controlled by Beraphim (who makes an appearance in a later boss fight), the hooded figure you see after killing the spider.
*The entrance to Albey is actually in the sewers. This makes a lot more sense when you realize that Verafim, in Ingkara's intro cutscene, seemingly leaves the room when you're at the only entrance. He actually just went off to Albey.
*Brynn is actually very weak by the way, because of the summoning. He will die if he leaves the magic laboratory, the magic barrier there is actually protecting him. That's also why he always ask you to do something, and never come out to do it himself, even if it's very simple thing.
*Thor is lizard's god; unfortunately, the lizard hold no religious respect to Thor. God to them is more like a tool and disposable, seeing how they plan on stealing the Fomor god when Erinn arrives (with Fomarian Domination I believe); and how they never even bother helping Thor when you are slaughtering it.
*The court actually built the sewer for the lizardmen, because they don't want human to win.[/SPOILER]
You may feel free to add in more.