So, I finished the DLCs last night. Some thoughts:
Better level design all around, more open, more Thiefy. Good stuff. The last two missions of the Brigmore Witches are the best in the entire game and begin to reach Thief caliber level design. The Knife of Dunwall isn't quite as impressive though. The Surge especially was kinda boring - I think maybe they could have found a better way to integrate the defeated Overseer invasion that Corvo saw into the story of the DLC.
Overall though the DLC brings much-needed
diversity that was missing from the base game. Competing street gangs, giant whales, mad scientists, spellcasting witches with undead dogs. And I love the terrain around the Brigmore Manor, it's such a refreshing change.
My favorite moment though, and this may sound weird, is when you dive through an underwater tunnel near the Dead Eels' ship which takes you into an otherwise inaccessible building with a rune in it. That sense of spatial contrast, of being transported between totally different types of places with different moods and appearances, is something that I now realize that Thief did often. For example, diving into the well and finding yourself in Lord Bafford's basement in the very first level of TDP. It makes the world seem big and REAL, as opposed to the "blinking arenas" that Dishonored levels usually feel like.
The Brigmore Witches themselves seem to be an allusion to the Trickster from Thief with the bright green plants they grow everywhere, and the last stage of the last mission is an obvious homage to the Maw of Chaos. Too bad it's really just the final room of the Maw of Chaos and not the entire level. Also, they totally should have ripped off the bell-twinkling sound you always heard in Trickster-infested areas in Thief.
I think the "Daud is an actual character!" thing is overrated. OK, he talks and that's nice, but I don't know, it didn't seem like a massive difference to me. He isn't
that interesting, just a tough guy voiced by Michael Madsen.
Difficulty. As far as stealth play goes, the DLC missions do seem perhaps slightly more difficult than the base game's. NPCs seem slightly more perceptive, and there are various "gotcha" situations here and there. I don't think it's really enough to make a serious difference for an expert player, though, and I wouldn't hype up these missions to stealth players based on their difficulty. It's really basically the same stuff. Time freezing blinking is fun to play around with, but it certainly does nothing to make the game harder.
I liked that money is more limited, and the between-mission store with Thief-style favors that you can buy is a nice touch. They're not all minor stuff, either. Being able to choose whether or not to disguise yourself as an Overseer at Coldridge Prison is a big difference. Kudos to Arkane for implementing things like that.
Non-lethal (and in general, unique/unusual) methods of eliminating targets are less tacked-on than they were in the main game, where it's often obvious that they were added relatively late in development. Capturing and interrogating targets, getting them in trouble with the law and arrested, it all seems much more fleshed out. The Nurse Trimble/Geezer situation is actually a great little piece of C&C that would fit in any RPG. The C&C-type stuff in the DLC is overall more well done than it was in the original game, with its embarrassing ambiguously worded lines of dialog ("you took down the High Overseer!")
Anyway, now I'm done, so Metro can relax...until I find the next game to play for 90 hours.