Ignite was spoiled in a facebook comment from the convention thingy. im working from memory, but its something like this:
2 mana incantation. fire 1. range 0-2. target object without a burning marker gains a burning marker.

Pictures of revealed cards: http://forum.arcanewonders.com/index.php?topic=13984.0
I'm comparing what http://www.arcanewonders.com/products/forged-in-fire-spell-tome-expansion says we get in the expansion and what has already been revealed to guess how much is left to reveal.

Adramelech Warlock Mage Card and Ability Card,
    http://www.arcanewonders.com/arcane-wonders/forged-in-fire-preview-the-adramelech-warlock

Warlord of the Anvil Throne Mage Card and Ability Card,
    http://www.arcanewonders.com/arcane-wonders/creative-corner

158 total spell cards(average 3.85 copies per card)
If DvN and KUMANJARO are indicators:
6 copies: level 1 nonequipment cards
3 copies: legendaries, equipment which is single school and level 2+
2 copies: epic, unique, legendary cards with a mage restriction, Mage specific equipment(Necromancer only rather than Dark Mage only ie death ring but not cloak of shadows)
4 copies: everything else
Based on the above system, i will guess the number of copies of each card as well. Yes, equipment is treated like its unique for the most part.

41 New Spells;
Not counting Debilitate and Holy Strike Promos
no new garrison post copies was mentioned
--------------------------------------------------

mentioned only(1/4) (copy count a complete guess)
Incantation "Disarm" (4)  (it might interact with the new condition disable)


promos that are to be added(7/32)
(for released promos: http://boardgamegeek.com/thread/992092/current-promo-list )
Hurl Rock (6)
lev 2 holy soldier (4)
Lions Savagery (6)
Bloodcrag Minotaur (4)
Sersiryx, Imp familiar (2)
Morning Star (4)
Wall of Force(6) (confirmed?)


Creatures 10/36)
Wildfire Imp (6)
Talos (2)
Anvil Throne Crossbowman(4)
Bone Dragon (2)
Blood Demon (4)
Goblin Alchemist (4)
Otto Kronig, Master Engineer (3)
Infernal Scourger (4)
Gurmash, Orc Sergeant (2)
Cerberus(3)

Equipment (5/11)
Gurmash's Signal Ring(2)
Bloodfire Helmet (2)
Harshforge Plate (2)
Eisenach's Forge Hammer (3)
Adramelech's Torment (2)


Enchantments (5/26)
Fumble (6)
Rust (6)
Brace Yourself (6)
Arcane Corruption (4)
Adramelech's Touch (4)

Conjurations (6/16)
Talos Statue (2)
Altar of Carnage (2)
Wall of Earth (6)
Armory (3 Edit:2)
Harshforge Monolith (2)
Construction Yard (2; Unholy Resurgence is similiar and has 2 copies)

Incantations (5/28)
Flank Attack (6)
Combustion (6)
Ignite (6)
Defend (6)
Conquer (4)

Attack (1/4)
Devil’s Trident (4)
--------------------------------------------


April 25th: 33/41 cards revealed thus far. 120/158 copies accounted for if we include the mentioned only cards. 4.75 average copies per card for remainder(so i underestimated card counts, or a lot of 6 copy cards are remaining).  6 weeks till june.

May5th:  34/41  122/158

may 17th 39/41 cards which we know the name, are aware of, or have seen the promo of. That leaves 7 reveals of cards we know some details of already, 2-3 promos, and 2 completely new cards.

June 3rd: we have seen all but two of the 41 cards(disarm and ). the 39 revealed cards estimate at 153/158 copies. I am guessing i am over by about 2 cards because the two remaining cards likely have more than 5 copies between them.

10 Condition Markers
   Disable Condition
6 Armor Bonus Tokens,
and Rulebook

My guesses:

Adramelech Warlock
Same training as other warlock
32 life, 10 channelling(or burning touch becomes a 0 mana melee attack)
Fireweaving: once per round, you may treat one spell you own with the flame subtype as having the cantrip trait until the end of the round.
Smoldering Curses: any attacks which can give a burn effect get +1 to their effect die for each curse on the target
Demonic Reward: for each burn condition one of your demons inflicts, that demon heals one damage.
Burning touch: once per round you may do this 1 mana quickcast with range 0-1: flame, 2 dice, burn on a 9+, 2 burns on a 13+.

"The Adramelech Warlock has a greater mastery of flames than other mages through her Fireweaving ability. She entwines curses and fire with her Smoldering Curses ability. Adramelech also rewards demons who revel in flame through the Warlock's Demonic Reward ability. Finally, mages tend to avoid the Burning Touch of the Warlock."

Warlord of the Anvil Throne
36 life, 9 channelling
Runesmithing /Master Forger: He starts with 5 rune markers. When he or something he controls casts equipment, he may attach a rune marker to it. I'm guessing he cannot reclaim the runes on destruction so the equipment costs more to destroy.
   Shielding: any defence attached to this equipment gains +2 to its roll
   Power: casting spells on or attached to this equipment costs one less mana
   Precision, fortification, reforging
Battle: +1 melee
Battle Orders: Remain a mystery. I hope one order gives soldiers in the zone +4 life until the end of the round to make them seem berserker-y.

Guesses on what the new "disabled" condition does? I'm guessing the war incantation "Disarm" is one way to place it.

Based on the same rationale of how a flying archer can ranged attack into its own zone, I'd like to see a flying unicorn get the charge bonus against targets in the same zone. If this rule already exists, I'd appreciate a reference.

What I want to really see in previews are the rules. vigilant and snatch for example.

You dont get the regen that turn if you dont pay the upkeep? Is there some rule saying that upkeep +x happens before all other effects in the upkeep phase. cuz last i checked, the creature owner decides the order of effects(regen 2 then return barkskin to spellbook rather than pay cost). edit: yeah my bad.

Pulling(7+ effect) Harpy would have been cool instead of the scream thing its got going on..