[Update]: Creative Assembly have also announced a major rework of the Skaven food mechanic and four new Monster Hunts for Norsca.
Total War: Warhammer 2 currently features five unique and interesting factions, each of which has a variety of different mechanics to juggle and units to experiment with. While this is most certainly a great thing for all fans of strategy and Total War: Warhammer, it has also unfortunately made some of the original four Old World factions (Greenskins, Vampire Counts, The Empire and Dwarfs) feel incredibly bland by comparison.
As such, I am very glad to say that Creative Assembly appears to be working on updating the Old World factions and bringing them up to Total War: Warhammer 2's standards. There are very few details available right now, but the Dwarf players among you will be glad to hear that they have revealed a brand new unit - the fast moving and armor-piercing Giant Slayers. You can see them in action over here.
The Giant Slayers might not seem like an important or even noteworthy addition, after all they're just a slightly tweaked Slayer unit, but they are going to be absolutely crucial in helping Dwarfs get over their crippling weakness against armored monsters. After all, the original Slayers might be powerful, but without armor-piercing damage they might as well be chucking rocks at a Necrosphynx. I can only hope they don't cost too much because I cant wait to give them a try in multiplayer!
Once Creative Assembly release more information I'll make sure to cover it, but if you would like to keep an eye out for yourself, simply head on over to the official blog. On a slightly different note, it's also worth mentioning that the long-awaited Norsca DLC will be making its way to Total War: Warhammer 2 this May alongside a massive update.
And finally, here are the Giant Slayers stats. GRIMNIIIIIIIR!