Blizzard has released a trailer for their new Hearthstone adventure: The League of Explorers

The adventure is centered around, well, adventure, and general Indiana Jones-y themes. It will feature 4 wings and a new mechanic called 'Discover' that gives you "the opportunity to dig up cards and select the one you need the most!" - presumably a mechanic similar to the card 'Tracking'.

More details are available on the adventure's new site.

EDIT: Polygon has A LOT of details on the expansion, including the release date, which they claim to be next Thursday, Nov. 12th.

I believe you mean Harrison Jones, thank you very much

The whole golden monkey thing doesn't give me confidence that their new card designs will be any better than the last few attempts. Discover seems interesting, but still leans heavily on rng to give you good options.

Here are all the cards

Cool that they're so close to being ready to release it and giving us the card bomb right off the bat. However I think aside from Discover (which I'm not too sure about, probably good, possibly excellent) it's not going to make a huge impact.

Jungle Moonkin - Probably sucks

Mounted Raptor - Good but not insanely good

Raven Idol - No clue

Explorer's Hat - Awesome card but not playable

Desert Camel - SMOrc

Dart Trap - Eh

Animated Armor - Cool card, great at 4/5, questionable at 4/4

Ethereal Conjurer - Probably sucks, but who knows.

Forgotten Torch - Good

Anyfin Can Happen - Sucks

Keeper of Uldaman - Atrocious card, Aldor Peacekeeper shits all over it, if it was "transform a minion into a 3/3" it would be pretty good.

Sacred Trial - Good if "play" means from the hand, mediocre otherwise but the most OP card in the game means it sees play.

Excavated Evil - Meh, could be good at 4 mana or 4 damage, just kind of sucks as is.

Entomb - Super cool card but game's too slow for it

Museum Curator - 2 mana draw Sylvanas? Shrug

Tomb Pillager - Great as a 4/5, meh as a 5/4

Unearthed Raptor - Excellent Card

Pit Snake - Annoying, if it sucks no one will play it, if it's good everyone will hate it. Rogue specific beast, because ???

Everyfin is Awesome - Pretty good for murloc decks, though fits the same type of "draw well and win" theme.

Rumbling Elemental - Good as a 4/5 or a 3/6, sucks as a 2/6

Tunnel Trogg - Would be good/possibly great if it was +2 attack, kind of too little otherwise but might still see play. Obviously has no synergy with Elemental Destruction.

Reliquary Seeker - Possibly the worst card in the entire game. Wisp destroys this card.

Curse of Rafaam - No idea, cool card though.

Dark Peddler - No idea.

Cursed Blade - Good in the early game, terrible in the lategame (in arena as well).

Obsidian Destroyer - Arena Card I assume, alright for that purpose.

Fierce Monkey - Good card

Arch-Thief Rafaam - Never sees play

Reno Jackson - If the meta slows down a shitload, which it won't with this expansion, this card might be alright.

Elise Starseeker - Fun card

Brann Bronzebeard - Could be amazing, certainly good but not close to Thaurissaun or Loatheb.

Sir Finley - Shrug

Djinni of Zephyrs - Good Arena Card

Naga Sea Witch - Cool Card, meta would have to be super slow.

Summoning Stone - Shoutout to Tavern Brawl, Stone + Nourish + Innervate + Power of the Wild = Profit. Sucks.

Eerie Statue - Weird, probably at least alright.

Ancient Shade - Atrocious

Fossilized Devilsaur - Arena Card, worse than Force Tank most of the time.

Wobbling Runs - Sucks

Anubisath Sentinel - Alright.

Gorillabot A-3 - Probably good, not sure.

Tomb Spider - Same as above.

Jeweled Scarab - Cool curve bailout card.

Huge Toad - Not bad.

Murloc Tinyfin - OP if murlocs work, not too great otherwise.

Ye, my first impression is that we'll see about 2 cards from the set go into constructed and they are both just slotting in as "slightly more powerful" cards in already very solid decks. The only breakout deck I can imagine coming out of it is a Murloc Shaman deck, but it would be a murloc deck so..... If they added a murloc tutor card then maybe it could work. There's a few more good arena cards, but they've been very conservative with stats this time around.

@fredchuckdave: Brann Bronzebeard's effect is apparently similar to Justicar Trueheart, lasting even after death. So it will be quite amazing in fact. (You can play it, brewmaster it, and play it again to get 4x battle cry.)

Also keeper of Aldaman can be used on your own guys, making it rather good actually. (Turn 3 muster, turn 4 Aldaman)

Some other random thoughts:

Tunnel Trogg: Turn 1 Trogg, turn 2 totem golem. There are a lot more overload cards now than before so this might be alright.

Mounted Raptor: Its ability aside (you'll most likely get a 2/1 or 1/2), wondering how many more druid beast cards we need before Beast Druid becomes a proper viable deck.

Murloc Tinyfin: Stealth nerf for murloc knight. (And neptulon)

Pit Snake: Master of Disguise finally sees play?

Entomb: As if Recycle couldn't get any worse. If Siphon Soul can see play, so can this. Not sure if there's room for it in the two existing Priest decks, but both are kind of slow already so it could work.

Curse Blade: Not going to see play considering Fiery War Axe. Warriors have enough weapons as is.

Erie Statue: Do we know if it needs to be the only thing on the board period, or just the only thing on your side? One makes it potentially pretty good. The other makes it terrible.

@turambar said:

Wow, really? Everything about Brann Bronzebeard seems like he is opposite to Baron Rivendare, who doubles up on Deathrattles only while Rivendare is still in play.

Also, Cursed Blade is just weird, because almost no 2-power equipment sees play, because it's too easy to get fucked over by 1/3 or 2/3 minions. Doomhammer sees play because of the Windfury and you can Rockbiter Weapon yourself, and Sword of Justice occasionally sees play because it's barely even a weapon, and more like an enchantment from MtG.

I agree it's kind of weird that Entomb is objectively better than Recycle, except in some weird situation where you want to get rid of a minion but don't want it clogging up space in your deck. Recycle could probably use a buff so it ever sees play anywhere, except no card gets buffed and things only get nerfed if they are literally ruining the entire game.

@bisonhero: There was apparently a Q&A session where Ben Brode confirmed the things about Bronzebeard.

@turambar: It's slightly better than I gave it credit for but still sucks. I mean there's a card in the game that gives all of your recruits +2/2 and Paladins have a billion better options on turn 4. So it's basically assisted removal if you already have board control against a big minion, but Peacekeeper already does that more or less. 4 mana 3/4 "help kill Malygos or Ysera" is basically what you're looking at. I mean maybe it sees play in Ebola, but everyone that plays Ebola is a terrible person.

Beast Druid is just a side deck essentially, like Murloc Shaman except Druid will actually have better alternatives. It's already an "okay" deck that you could get to legend with if you wanted to play enough. Any deck that has a 50.00000001% win rate can get to legend.

The text on Brann Bronzebeard does not imply that the impact is permanent; if Brode said differently then sure that seems a little OP, still nowhere near Thaurissaun or Loatheb. The best card in the expansion that will see play is the torch, the rogue card is superb but doesn't necessarily fit existing rogue decks. If you're not a mage player you pretty much don't have to buy the expansion, sure the Druid 1 mana Discover is probably okay but its totally random so it's more or less just an unstable portal. Camel's good of course but sort of unnecessary, Paladin secret will see play because Mysterious Challenger shits all over every other card in the game.