MSQ
Well Forchenault certainly put on a performance though I have to wonder for who and for what purpose, G'raha saw through it rather easily, perhaps the Forum has decided a course of action Forchenault doesn't actually agree with but is forced to go along with and wants to have help in overturning said decision.
As for his announcement of the twins no longer bearing the name of Levialler, a manipulative ploy, I am sure he is aware how rash Alisae can be and that Alphinaud would go after his sister, I think this was just a way for him to trick them to come home but this was cruel and I hope we get to call him out on it if he does actually care about his children.
Flandaniel and Zenos are pondering about a dreamer, is the dreamer Zenos or does it involve Lakshmi since her tempered are known as dreamers.
As for their goal seems like Zenos wants to use the lifestream to power himself up more and gorge himself on Zodiark all for that big dramatic pointless fight he craves. Flandaniel certainly making up plans as they go along, but these plans are trying to do 2 things, if they succeed he kills a large quantity of people, if it fails it stalls his enemies from discovering his big plan, either way he gets a benefit out of it.
The roar could be anything at this point, Vrjra, Anima, Lavos, anything it was offscreen and distorted.
Bozja
Diabolos returning was interesting and raises more questions though, did the Allagans actually summon him or just part of his essence, because he got fully summoned by High Voidmage Cessair to coerce Amdapoor into surrender and then promptly sealed, yet this happened while he was also fused to Allagan tech at the same time.
So was the Diabolos we face in Mhach still not at 100% full strength even after absorbing the queen, certainly adds more fuel to Diabolos can return again fire.
Gabranth being killed offscreen feels more like a writing trick for a way to be able to leave the story as is if they don't touch it again than an actual finale to his story. I suspect if they want to they can easily pick up the story again where it left off and it is more a matter of if they want to.
Yorha
Well that ended weirdly the fact both dwarfs were red haired and acted the way they do I should've gotten the Devola and Popola vibes much sooner, perhaps these two are the original ones that the android ones get based off of.
I will say this went out with a whimper