Horrors Within: Everything We Know So Far
I wanted to get a single thread with all of the info we can piece together so far. Please let me know if I missed anything. I will update the body.
The Subclasses are Reanimator Artificer, Spirit Bard, Grave Cleric, Hollow Warden Ranger, Phantom Rogue, Shadow Sorcerer, Undead Warlock.
Species are Hexblood, Lupine, Reborn, Dhampir
Backgrounds are Haunted One, Investigator, Spirit Medium, and Mist Wanderer
Haunted One gets a dark gift of your choice or the new survivor feat. It boosts Con, Wis, and Cha, and it gives a Gaming Set proficiency and Arcana and Survival skills.
Investigator gets a dark gift of your choice or the new Sharp Eye feat. It boosts Int, Wis, and Cha, and it gives a Disguise Kit proficiency and Insight and Investigation skills.
-Now for the Fun Stuff!-
We are getting three new feats. It is confirmed that we are getting all of the old Dark Gifts reprinted as Origin Feat options. One returning Dark Gift is the Mist Walker. Its downside, Poisoned Roots, triggers on a Rest now.
One of these new feats is Sharp Eye, the feat for the Investigator background. There is one new Dark Gift feat as well (Aberrant Anatomy), which means that there is going to be one other non-Dark Gift feat (Survivor).
Two as of now unknown Magic Items. One may be Ebonbane as a magical weapon
8 new Ravenloft themed Bastion Options, with some focus on reclaiming haunted bastions.
There are 68 monsters, which means 19 are new monsters, provided that all of the old book's monsters are reprinted, and then also the 17 new Darklord Statblocks. The new monsters include Waxworks (CR3), Mist Horrors (CR3), Elder Thing (CR14), Strahd Skeletons (CR4), Migo, Shuggoths, Death Head Tree (CR4), Yith, Nightgaunts, Gugs, and Mordenheim's Monster (Elise?) This then leaves 8 unknown new monsters.
Confirmed Returning Monsters are...
Swarm of Zombie Limbs
Zombie Clots
gremishkas
Gremishka Swarms
Death Heads
Brain in a Jar
Dullahan
Loup Garous
Jiangshi
Relentless Juggernaut
Relentless Slasher
The art for the above two monsters also includes art of a malevolent bandaged-wrapped caster of some kind. Unconfirmed if this is a new monster too. It may be a Priest of Osybus since it would be next to the Relentless monsters alphabetically, so both monsters may be sharing the art page.
Art for a monster that seems to be a spirit made from several souls, holding several weapons was also dropped on the Youtube channel posts. It may be new art for the Gallowspeaker.
15 of the 16 domains are pretty much confirmed now as...
Barovia -Strahd
Darkon - Azalin
Borca -Ivana and Ivan
Mordent - Godefroy
Sithicus - Soth
Valachan - Chakuna
Kalekeri - Ramya
Har'Akir - Ahnktepot
Falkovnia - Vladeska
Lamordia - Viktra
Hazlan - Hazlik
Innsmouth - Chthulu
Dementlieu - Saidra
Tepest - Lorinda
Kartakass - Harkon - Art for Kartakass is on one of the covers of the B&G books, with a street preformer being surrounded by transforming lycanthropes.
The Shadowlands - Ebonbane was listed as one of the major darklords in a DnD Beyond article. This along with all of the Shadowland maps in B&G seems to confirm it as the 16th domain.
There is a battle map in the B&G bundle for an Odiare toy workshop, which is the only domain with a battle map in the bundle that hasn't yet been confirmed.
There is also art for Tristessa and Keening that has been released, but that may just be used for the short blurbs on additional domains again.
Potential art for Ghastria has also been shown.
Chthulu is CR 25
Lord Soth is CR 19
Godefroy is CR 6
Saidra is CR 9
Strahd is CR 15
There will be 17 One-Shot adventures in the style of the one-page adventures featured in the DMG. One for each domain. Two for Borca?
Darklords will have lair's detailed and given maps. There will be 47 total maps in the book. This will likely be split between battle maps and domain maps.
Maps confirmed so far...
Martira Bay, Mordentshire, Old Kartakan Inn and Tavern, Shadowborn Manor, Van Richten's Herbalist Shop, and the lightning rail carts of Cyre 1313.
Denizens of the Mist shown so far include...
Alanik Ray and Aurthur
Foxgrove-Weathermay Twins
Ez
Van Richten
Madam Eva
They get statblocks as well.