I genuinely want to see the flattening, not only because it'd be a genuine case of subverted expectations, but because at this point, you'd need some major, series ruining, asspulls for anything else to happen. If this manga genuinely goes a talk-no-jutsu or Zero Requiem route (especially with Eren or Ymir), that'd be one of the worst, unfitting and most childish possible endings. Especially with Gabi seeming to be the new "hero MC".
I've never used this word before, but Yelena is based as fuck. She's the only one who seems to understand just how full of shit and hypocrisy everyone is. None of them seemed to understand or truly appreciate it though. This shit needs to end, one way or another, and not with some ridiculous fairy tale ending or avengers wannabe BS. I don't see this as much different than the Americans dropping the nukes on Japan. In this case, the extreme minority is in the "right", and this is the only way they get to live.