Iron Wolf class.
This is just my theory (So don’t be alarmed). And what I think what the shadow is on the campfire screen. Would be something new and different from a paladin/crusader.
https://diablo.fandom.com/wiki/Iron_Wolf
https://static.wikia.nocookie.net/diablo/images/8/8c/Iron_Wolves.jpg/revision/latest?cb=20150129125829
Leader: Asheara
https://diablo.fandom.com/wiki/Asheara
“The Iron Wolves are mercenaries, but they stand in contrast to many of the mercenaries that fight in Sanctuary. While mercenary companies are notorious for their habit of shifting allegiances, the Iron Wolves value loyalty and duty above all else. Though, Bold and Reckless. The Iron Wolves are hardened veterans who excel in disciplines ranging from swordsmanship to the use of magic.”
Mercenary Soldier with arcane powers (A type of Battle Mage). Considering that paladins and crusaders wont be able to/can’t call on heavenly powers anymore because there is no angel to answer the call since the angels have shut their gates in heaven for 50 years or so.
Idea.
Using shield and one handed weapon (Sword, Mace, Flail, Spear) and Polearms aswell as arcane powers to boost himself/herself in combat or use magic arcane shield. Using Polearms for more heavy damage and for more range/Aoe (Like the Barbarian or Rogue, He/She can switch between 2 weapon styles). While the Sorceress/Sorcerer use Fire, Ice and Lightning magic and druid use Storm and earth magic. That leaves Arcane and Necromancy left but Im sure many want to see the return of the necromancer someday, so I thought arcane would suit the Iron Wolf. They have of course in the past used same magic as Sorceress/Sorcerer but those ability’s are already occupied by the Sorceress/Sorcerer so that leaves Arcane. But again this is just a theory of mine.
Starts with Light armor and hood (with a plate helmet) at lower level. At higher levels the Iron Wolf start to wear similar armor like crusaders and paladins have.
From D2R and D3.
https://wow.zamimg.com/uploads/screenshots/normal/1030469.jpg
https://static0.gamerantimages.com/wordpress/wp-content/uploads/2021/03/Iron-Wolf-Concept-Diablo-2-Hirelings-Explained.jpg?q=50&fit=crop&w=1400&dpr=1.5
https://www.purediablo.com/forums/media/iron-wolf-lore-panel.7338/full
https://img.gamerjournalist.com/spai/q_lossy+ret_img+to_auto/https://cdn.gamerjournalist.com/primary/2021/09/Diablo-2-Resurrected-Insight-1024x576.jpg
https://static1.gamerantimages.com/wordpress/wp-content/uploads/2021/03/Desert-Mercenary-using-their-Aura-Diablo-2-Hirelings-Explained.jpg
https://static.wikia.nocookie.net/diablo/images/2/2a/Asheara_Portrait.png/revision/latest?cb=20170619011224
Maybe in a expansion we see paladin/crusader class when we make enough noise so the angels will open their gates and ask What in “Heavens”… is going on down there :).