Everything about Dragonlorn Keep was incredible. The fights were a ton of fun (and far harder than even most Void Bosses), and the writing was great. I loved the implementation of the new status effect system into the quests to integrate the environment into the gameplay. My only slight complaint is that the dialogue can be rather hard to follow at times. Admittedly, my grasp of English grammar is not as great as I'd like it to be, and everything is deliberately cryptic. It is still worth mentioning, however, in my opinion because it slightly detracts when I have trouble understanding what's going on. Still, I must reiterate that this has been one of the highlights of 2020 in my life, and I'm even more excited about what's coming than I was before the questline came out.
The war was great. As we've all stated already, the new 0.5 power model makes everything so much easier. I would love for it to be a permanent addition to wars.
The final boss Betrayal was absolutely amazing.
Possessed Sepulchre Armor looked beautiful, and the fight was both challenging and interesting. I got destroyed on my first run relying on Control, and I demolished him by playing a bit safer the next. His self-destruction (having a huge elevuln to light) after a couple of turns was really surprising. It really makes one wonder what's the story behind it. Once again, I'm loving the gameplay and story integration.