...Huh? Am I missing something or is that a pathetically tiny act 2? You know, what's typically supposed to be the longest act of a creative work? Act 1 had several areas to explore, lots of lore, lots of side quests, interact with a lot of characters, etc. And KM is just gonna be... what? 2 and a half areas to explore(that probably won't get much content tbh also one is half because TOBS), some side character sex scenes that don't really go anywhere, and a colosseum quest? Are there even any side quests besides Nihara's temple thing and the new vulpine lady? And no Brienne's family and the centaur relocation don't count because it's literally just going back and forth between NPCs, and not in any meaningful way.
As cynical as I can be with the devs, I really don't think KM is wrapping up like you say it is. It would need a lot more content to come even close to matching the first act.