...did someone say hope?
a coup failed, so they're going with incrementalism. as i said, she will not become the queen, but the pope. by that i mean an informal sovereign, moving towards writers' goals by inexplicably winning over the forsaken. every conflict will ultimately go in her favor.
the questline's purpose is to confuse the fans and mask the fact that she is in. it's especially noticeable when Faranell says that he'll work toward a brighter future - which she repeats five minutes later verbatim. i don't think he was being sarcastic or dishonest - he'll just play the obnoxious role of a crazy scientist similar to Marileth or Dr. Dickus in PF, but he will always agree with Calia when a choice is to be made. Lilian will always support Calia, Velonara doesn't even mind that an Alliance spy was helping them, so she's also on board with the agenda.
that leaves us with Belmont, the military guy. that's already a minority voice, but a voice nonetheless.
when will the Forsaken need their forces? when Turalyon launches his special military operation in Lordaeron.
i don't think that Calia will support him, as #notalllightforged. she also won't be killed immediately, because she's in plot armor and blessed by cdev. they have a choice with Belmont: to make him a hardliner and later kill him for lack of tolerance as they did with Garrosh, or to give him his character development™, by accepting that #notalllightforged. perhaps she'll save him personally and he'll come around.
you know who else could have character development™ when Turalyon goes nuts? someone who knows what the tyranny of the Light actually means; someone who has prejudices to overcome and accept the aforementioned hashtag; someone who will lead the orcs to Stormwind - but this time as saviors, not as conquerors.
imagine that shitty meme with Mercy, offering a hand to the child under the rubble - but it's Geya'rah instead. inspiring, right?