Auntie Ethel's Vicious Mockery LinesUnused Main Character Lines (Possibly Scrapped)Karlach Companion LinesAll courtesy of /u/Chubblot on Reddit. If he is on this forum, please let me know so I can thank him for all this work.
Copy of his thread on tag datamining
(link to annotated reddit post here)Classes
EDIT: Pastebin - Classes+Passives
Nothing too spicy here - here are the class tags and their descriptions.
Paladins, like Clerics, are broken up into Good/Neutral/Evil depending on chosen Deity.
Druid's description is messed up right now (it's a copy/paste of Bard).
Convo Spellcasts
EDIT: Pastebin - DetectThoughts
Might be a leftover or something, but there's a specific tag for DetectThoughts - listed as a "Dialog" tag.
"Player has acces [sic] to Detect Thoughts (Either spell prepared and free spellslot or scroll available) | Also used as Interal [sic] Speech indicator"
Could be referencing us having the option to cast detect thoughts mid-conversation.
Companions
EDIT: Pastebin - Crime handling
This is small - I found a file that deals with NPC reactions to players committing crimes etc. and it has a list of eight (seven?) named characters. If you've been following mining efforts I imagine this isn't news to you.
Species/Monster/Race
EDIT: Pastebin - Races/Really_ tags + Monsters/Species
Ok, this is the convoluted one that I'm not sure how to convey.
First, I want to explain how I think the tags work:
Tags for "living" beings in the world are broken up into Monsters, Species and Races.
For example: Monster tags apply to creatures in a general sense - Aberration, Giant, Beast etc. There's one really interesting one (Undead) that seems different to the rest, but if you want to read about that you can here.
Species, then, breaks up these monster tags into individual... well, species. A species seems distinct from a race for the most part and the (potential) bad news for you Goblin fans is that Goblins appear under the banner of "species," alongside Gnolls, Chickens, etc. This isn't all of them, just some.
Now... races. The big one.
We know there are going to be races added to the game, at least a few within early access.
There are a lot of race tags in game. Like, loads. Some have a specific category called "PlayerRace" - Elves, Drow, etc. Several unreleased racial tags also have the "PlayerRace" category, you can see them here.
Judging by that list, it seems that Gnomes (three subtypes) and Duergar are currently considered player races (at least in terms of their tags).
But there are so many more racial tags. I want to show you them, then explain what their presence might mean (it might not all be good news).
Here are the racial tags currently in the files.
Whoa, right? Well hang on a minute - there's something they all have in common, sans one (or two)...
They all say "Character looks like x." Except for Half-Orc, which says "Player is a Half-Orc." It doesn't have the PlayerRace tag, but it is a PHB race, and they have a description written up. Is the difference significant? Perhaps. You'll note the other PHB race on this list - Dragonborn - follows the "Character looks like" trend the rest do. So are we not getting Dragonborns?
I don't have a clue, but there are more tags worth looking at. They require a little information/theorizing (I don't know anything about game development so forgive me if I'm wrong here).
Each of the races (sans Kuotoa) is accompanied by a REALLY_ tag. And a REALLY_ tag is significant.
When you change your race using the disguise kit or the shapeshifting spell, the game checks what your actual race is (also checks if you're an origin character) and seemingly just replaces your tag with your chosen racial tag. But in reality it sneaks a hidden tag onto your character, a REALLY_ tag, so the game can keep track of what your actual race is. The presence of a REALLY_ tag seems to be a strong indicator that you can change from the race indicated by the REALLY_ tag into another race. And guess what other races have the REALLY_ tag?
In addition to the REALLY_ tags, there are the Meta race tags. If you've played as a Gith, Tiefling or Drow/Half Drow you've likely encountered dialog options that reference these already - there are four currently in-game.
Bestial covers races we've not encountered yet, but Planar is used when you play a Gith, and Rare is used for Tiefling, Gith and Drow-related characters (drow also get the Underdark tag). And Planar, Rare and Underdark are applied as dialog tags to several of the races I've highlighted already, including the unreleased but likely coming Half-Orc. I'd say that's more potential evidence that there are or were plans for these races to be playable, especially with the Planar dialog tag currently only applying to one playable race - if that was planned to stay the same why not just drop the Planar tag and make Planar responses Githyanki specific ones?
Extra
Here is a list of every unit in the game (in a general sense). I assume if it's listed here there are plans for us to encounter it before the end of act one (which explains why there's only one dragon listed).
https://pastebin.com/RLB7M0c8And here is a list of the "template" characters:
https://pastebin.com/8QQahqepThe Origin characters seem covered by the templates except for Astarion, who is unique in that he needs a separate piece of logic to make sure he takes acid damage crossing water etc.
Spells:
https://pastebin.com/mG0YgTbpPassives:
https://pastebin.com/d4saDuJe 
