Thanks for making this feedback thread! I'm very sleepy when writing this, but here's what came to mind off the top of my head with what I'd like to see updated:
CazadorAlthough I had a great time with the other subplots I played out in my first full playthrough, I strongly wish that the Cazador storyline had a little more to it besides barging in on the guy abruptly and having a few different options to kill him as soon as you make eye contact. It felt like a rush to the finish line for Astarion's story after all the hyping up he did for two acts. The fact that the only resolution with Cazador is to kill him is probably what bothers me the most because of there being other points in the game where you can ally with your rivals, and I liked how some things unfolded very differently as a result.
It feels disappointing to not have that option in this particular scenario, when it would have been very interesting to see another unique outcome to the Astarion storyline if you were able to successfully hand over Astarion in exchange for a tense alliance with a more seasoned vampire who's supposed to have a lot of political power within the city. You'd lose Astarion as a follower, of course, but in exchange you get to hear more of Cazador's backstory and some combat scenarios might be made easier, avoided all together, or otherwise altered by having him as an ally.
Cazador did express concerns in a journal entry about how Gortash's influence might disrupt his operations, so it felt very strange that Cazador wouldn't recognize the player's party as the perfect new pawns to deal with this problem for him while he figures out exactly what new powers becoming the Vampire Ascendant grants him and what his new limits are.
It just seemed like a missed opportunity to do more with that story, and it was a little bit of a letdown that you could only pretend to betray Astarion to Cazador, when usually the game would let you intentionally betray your companions or other characters you meet along the way. It really added to the roleplay of playing out a backstabbing villainous character, so it feels odd to encounter situations where it's suddenly not treated like a valid narrative choice.
GortashOn the note of Gortash, I loved that the game let you ally with him, though I am very sad at how short lived it is. It would have been nice to get to do a little scheming around the city and, in the case of playing Dark Urge, catching up on old times before he gets Power Word Killed by the big brain. I also wouldn't mind having an Insight check that allows your character to take notice of when he's about to swipe the stones from you and stop him from doing so, to save him from getting himself killed by the Netherbrain, have him actually help in the finale, and see whatever fate awaited him in the end cutscene.
Butler/Sceleritas FelI would've liked to see Sceleritas around more in the Dark Urge origin, even if it was only as a summoned combat companion that occasionally makes entertainingly morbid quips. He was a fun character whenever he was on screen, so I'm dying for more of this guy.
Really, I think my disappointment from Act 3 just comes from meeting all these interesting characters with lots of potential that are supposed to be fairly important figures, and then not having very much time to get to know them + feeling like I had less narrative choices than in storylines from previous acts, where it felt like they kind of thought of everything as far as what a player might want to do, even if it's a decision that not many players would opt to make.
I love this game a
ton, and I hope they'll consider expanding on the parts that don't feel quite as epic as others but could be with a few more additions. I'm thrilled that they're working on beefing up some of the subplots in that way with the upcoming Patch 2, and I hope these characters and the others mentioned in this thread will get that kind of attention, too! The game is already one of my favorites of all time, and continued polish on it would only make it even better!