Over the past ten weeks, spoiler articles have been released for Shadow Era’s forthcoming 4th set, Lost Lands, including 29 spoilers.
The articles are well worth a read (#1, #2, #3, #4, #5, #6, #7, #8, #9), but if you just want to see the spoilers, then we’ve assembled them here for you.
Human Allies
These are rather under-represented in the spoilers so far, but that has tended to be the way for all sets, so let’s not panic just yet. This is Shadow Era, after all.

Entangled Wisp

Unaxio Bannerman

Avatar of Twilight
Shadow Allies
A total of seven Shadow allies have been revealed so far. Let’s take a look.

Flamespitter

Sword Gobbler

Feasterling

Brakkong, Menace of Thriss

Forgotten Horror

Wulven Traitor

Wildfang, Wulven Renegade
Neutral Allies
Yes, Shadow Era will finally have some fully neutral allies, including a predominantly neutral tribe in the shape of the Aldmor.

Barrenland Gremlin

Void Wretch

Child of Aldmor

Darklight Apprentice

Aldmor Artisan

Aldmor Scout

Ancient of Aldmor
Locations
Also new to Lost Lands, we have a brand new card type, of which six instances have been revealed so far:

Sosilo: Brothers’ Landing

Irum: Lightning Quarry

Arthyle’s Pass: Dead Man’s Breach

Lyth: Kristan’s Ridge

Gaderi: Braxno Citadel

The Wilds: Trading Port
Artifacts
It’s been hinted that artifacts will play a much larger part in Lost Lands than in any other set. Here are two such items spoiled so far:

Clockwork Soldier

Rejuvenation Pod

Aldmor Conflux
Abilities
One Shadow ability and two Neutral abilities have been revealed so far:

Relentless Savagery

Spontaneous Growth

Rest for the Weary
If any of those cards don’t make sense to you, the associated articles should help out!
As more cards are revealed, we’ll update this post so be sure to bookmark it and check back each week to see what’s new!