Alright, so:
The Warring Triad
We fight Regula for a third time but he manages to escape. He's pretty passionate about his loyalty to the Emperor and insists that the Garlean's methods will lead to salvation. He also mentions something interesting about the magitek within his blade and summons some sort of...giant cat during the encounter. This pretty much proves that whilst Garleans cannot cast magic directly they can, in fact, cast it through the use of their equipment. This explains Gaius' ability to teleport and conjure fire. Much like Gaius, Regula's 'magic' looks very similar to ceruleum. We also learn that auracite is, in fact, not a good thing and apparently corrupts heroes who use it into monsters. I think it's a clear hint that Regula will go down that route - plus it means we can't rely on its use to deal with the Ascians, I suppose.
MSQ:
Hraesvelgr tests us which is the plot for the new MSQ dungeon. He agrees to aid us against Nidhogg. We fight Nidhogg. An interesting enough encounter - though then we defeat him and Ysayle/Haurchefant show up in spirit form to help us save Estinien. Some people on this very forum predicted that happening which...makes me worry that the developers are indulging in blatant fan-service at this point where major fan theories are concerned. I like Estinien so I'm not unhappy that he survived but at the same time I don't want it to become a convenient plot device that allows us to save any of the protagonists who happen to be in a similar situation.
Nobody died...other than Nidhogg and countless nameless generic Ishgardian soldiers. Aymeric removes the influence of the church from Ishgardian politics (does that include the worship of Halone?) and established a House of Lords and a House of Commons. He ends up being the most important figure. Airship routes are established between Ishgard and the other major cities. Peace with the dragons is seemingly achieved...so Ishgard gets a happy ending. Edmont steps down as promised and Artoriel is the new leader of House Fortemps.
Overall it was...satisfying, I suppose. I expected a bit more to happen though - and the cliffhanger was literally just a short scene involving the Warrior of Darkness clashing briefly with Alisae...who is promptly rescued by Thancred. They flee together and Elidibus claims that they will 'do their part'. Nidhogg's eyes are thrown from the Steps of Faith...and it's hinted that the Warrior of Darkness/Elidibus are interested in them. They're shown to be somewhere in the Shroud. No scene showing us Yda and Papalymo.
We're due to get another patch in two weeks, though. I wonder if there's any chance it will come with more MSQ's?